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Safety\uff0c\u5426\u5219\u5c31\u4e0d\u662f\u7ebf\u7a0b\u5b89\u5168\u4ee3\u7801\uff0cthread-unsafe.\u3002\u975e\u7ebf\u7a0b\u5b89\u5168\u7684\u4ee3\u7801\u5176\u8fd0\u884c\u7ed3\u679c\u662f\u8fd0\u6c14\u51b3\u5b9a\u7684\u3002\u8fd9\u548credis\u7684\u9ad8\u5e76\u53d1\u4e00\u6837\uff0capache-jmeter\u641e\u5e76\u53d1\u53d1\u4f60\u53d1\u73b0\u4e0d\u4e00\u5b9a\u662f\u7b2c\u4e00\u4e2a\u8bf7\u6c42\u53ef\u4ee5\u62a2\u641e\u7968\u7684\uff0c\u7eaf\u770b\u8fd0\u6c14<\/p>\n\n\n\n<p>\u7ebf\u7a0b\u5b89\u5168\u7684\u5b9a\u4e49\u5f88\u7b80\u5355\u5427\uff0c\u4e5f\u5c31\u662f\u8bf4\u4f60\u7684\u4ee3\u7801\u4e0d\u7ba1\u662f\u5728\u5355\u4e2a\u7ebf\u7a0b\u8fd8\u662f\u591a\u4e2a\u7ebf\u7a0b\u4e2d\u88ab\u6267\u884c\u90fd\u5e94\u8be5\u80fd\u7ed9\u51fa\u6b63\u786e\u7684\u8fd0\u884c\u7ed3\u679c\uff0c\u8fd9\u6837\u7684\u4ee3\u7801\u662f\u4e0d\u4f1a\u51fa\u73b0\u591a\u7ebf\u7a0b\u95ee\u9898\u7684\uff0c\u5c31\u50cf\u4e0b\u9762\u8fd9\u6bb5\u4ee3\u7801\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code><code>int func() {<\/code><code>  int a = 1;<\/code><code>  int b = 1;<\/code><code>  return a + b;<\/code><code>}<\/code><\/code><\/pre>\n\n\n\n<p>\u5bf9\u4e8e\u8fd9\u6837\u6bb5\u4ee3\u7801\uff0c<strong>\u65e0\u8bba\u4f60\u7528\u591a\u5c11\u7ebf\u7a0b\u540c\u65f6\u8c03\u7528\u3001\u600e\u4e48\u8c03\u7528\u3001\u4ec0\u4e48\u65f6\u5019\u8c03\u7528\u90fd\u4f1a\u8fd4\u56de2<\/strong>\uff0c\u8fd9\u6bb5\u4ee3\u7801\u5c31\u662f\u7ebf\u7a0b\u5b89\u5168\u7684\u3002\u90a3\u4e48\u6211\u4eec\u8be5\u600e\u6837\u5199\u51fa\u7ebf\u7a0b\u5b89\u5168\u7684\u4ee3\u7801\u5462\uff1f\u8981\u56de\u7b54\u8fd9\u4e2a\u95ee\u9898\uff0c\u6211\u4eec\u9700\u8981\u77e5\u9053\u6211\u4eec\u7684\u4ee3\u7801\u4ec0\u4e48\u65f6\u5019\u5446\u5728\u81ea\u5df1\u5bb6\u91cc\u4f7f\u7528\u79c1\u6709\u8d44\u6e90\uff0c\u4ec0\u4e48\u65f6\u5019\u53bb\u516c\u5171\u573a\u6240\u6d6a\u4f7f\u7528\u516c\u5171\u8d44\u6e90\uff0c\u4e5f\u5c31\u662f\u8bf4\u4f60<strong>\u9700\u8981\u8bc6\u522b\u7ebf\u7a0b\u7684\u79c1\u6709\u8d44\u6e90\u548c\u5171\u4eab\u8d44\u6e90\u90fd\u6709\u54ea\u4e9b<\/strong>\uff08\u5728\u6808\u533a\u5806\u533a\u4ee3\u7801\u533a\u6570\u636e\u533a\uff09\uff0c\u8fd9\u662f\u89e3\u51b3\u7ebf\u7a0b\u5b89\u5168\u95ee\u9898\u7684<strong>\u6838\u5fc3<\/strong>\u6240\u5728\u3002<\/p>\n\n\n\n<h5 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class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"719\" height=\"657\" src=\"https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745595884-image.png\" alt=\"\" class=\"wp-image-1007\" srcset=\"https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745595884-image.png 719w, https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745595884-image-300x274.png 300w\" sizes=\"auto, (max-width: 719px) 100vw, 719px\" \/><\/figure>\n\n\n\n<p>\u540c\u65f6\u51fd\u6570\u8fd0\u884c\u65f6\u9700\u8981\u989d\u5916\u7684\u5bc4\u5b58\u5668\u6765\u4fdd\u5b58\u4e00\u4e9b\u4fe1\u606f\uff0c\u50cf\u90e8\u5206\u5c40\u90e8\u53d8\u91cf\u4e4b\u7c7b\uff0c\u8fd9\u4e9b\u5bc4\u5b58\u5668\u4e5f\u662f\u7ebf\u7a0b\u79c1\u6709\u7684\uff0c<strong>\u4e00\u4e2a\u7ebf\u7a0b\u4e0d\u53ef\u80fd\u8bbf\u95ee\u5230\u53e6\u4e00\u4e2a\u7ebf\u7a0b\u7684\u8fd9\u7c7b\u5bc4\u5b58\u5668\u4fe1\u606f<\/strong>\u3002\u4ece\u4e0a\u9762\u7684\u8ba8\u8bba\u4e2d\u6211\u4eec\u77e5\u9053\uff0c\u5230\u76ee\u524d\u4e3a\u6b62\uff0c\u6240\u5c5e\u7ebf\u7a0b\u7684\u6808\u533a\u3001\u7a0b\u5e8f\u8ba1\u6570\u5668\u3001\u6808\u6307\u9488\u4ee5\u53ca\u51fd\u6570\u8fd0\u884c\u4f7f\u7528\u7684\u5bc4\u5b58\u5668\u662f\u7ebf\u7a0b\u79c1\u6709\u7684\u3002\u4ee5\u4e0a\u8fd9\u4e9b\u4fe1\u606f\u6709\u4e00\u4e2a\u7edf\u4e00\u7684\u540d\u5b57\uff0c\u5c31\u662f<strong>\u7ebf\u7a0b\u4e0a\u4e0b\u6587<\/strong>\uff0cthread context\u3002\u6211\u4eec\u4e5f\u8bf4\u8fc7\u64cd\u4f5c\u7cfb\u7edf\u8c03\u5ea6\u7ebf\u7a0b\u9700\u8981\u968f\u65f6\u4e2d\u65ad\u7ebf\u7a0b\u7684\u8fd0\u884c\u5e76\u4e14\u9700\u8981\u7ebf\u7a0b\u88ab\u6682\u505c\u540e\u53ef\u4ee5\u7ee7\u7eed\u8fd0\u884c\uff0c\u64cd\u4f5c\u7cfb\u7edf\u4e4b\u6240\u4ee5\u80fd\u5b9e\u73b0\u8fd9\u4e00\u70b9\uff0c\u4f9d\u9760\u7684\u5c31\u662f\u7ebf\u7a0b\u4e0a\u4e0b\u6587\u4fe1\u606f\u3002\u73b0\u5728\u4f60\u5e94\u8be5\u77e5\u9053\u54ea\u4e9b\u662f\u7ebf\u7a0b\u79c1\u6709\u7684\u4e86\u5427\u3002\u9664\u6b64\u4e4b\u5916\uff0c\u5269\u4e0b\u7684\u90fd\u662f\u7ebf\u7a0b\u95f4\u5171\u4eab\u8d44\u6e90\u3002\u90a3\u4e48\u5269\u4e0b\u7684\u8fd8\u6709\u4ec0\u4e48\u5462\uff1f\u8fd8\u6709\u56fe\u4e2d\u7684\u8fd9\u4e9b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"339\" height=\"504\" src=\"https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745595899-image.png\" alt=\"\" class=\"wp-image-1008\" srcset=\"https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745595899-image.png 339w, https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745595899-image-202x300.png 202w\" sizes=\"auto, (max-width: 339px) 100vw, 339px\" \/><\/figure>\n\n\n\n<p>\u8fd9\u5176\u5b9e\u5c31\u662f\u8fdb\u7a0b\u5730\u5740\u7a7a\u95f4\u7684\u6837\u5b50\uff0c\u4e5f\u5c31\u662f\u8bf4\u7ebf\u7a0b\u5171\u4eab\u8fdb\u7a0b\u5730\u5740\u7a7a\u95f4\u4e2d\u9664\u7ebf\u7a0b\u4e0a\u4e0b\u6587\u4fe1\u606f\u4e2d\u7684\u6240\u6709\u5185\u5bb9\uff0c\u610f\u601d\u5c31\u662f\u8bf4\u7ebf\u7a0b\u53ef\u4ee5<strong>\u76f4\u63a5\u8bfb\u53d6<\/strong>\u8fd9\u4e9b\u5185\u5bb9\u3002\u63a5\u4e0b\u6765\u6211\u4eec\u5206\u522b\u6765\u770b\u4e00\u4e0b\u8fd9\u4e9b\u533a\u57df\u3002&nbsp;<\/p>\n\n\n\n<h5 class=\"wp-block-heading\"><strong>\u4ee3\u7801\u533a<\/strong><\/h5>\n\n\n\n<p>\u8fdb\u7a0b\u5730\u5740\u7a7a\u95f4\u4e2d\u7684\u4ee3\u7801\u533a\uff0c\u8fd9\u91cc\u4fdd\u5b58\u7684\u662f\u4ec0\u4e48\u5462\uff1f\u4ece\u540d\u5b57\u4e2d\u6709\u7684\u540c\u5b66\u53ef\u80fd\u5df2\u7ecf\u731c\u5230\u4e86\uff0c\u6ca1\u9519\uff0c\u8fd9\u91cc\u4fdd\u5b58\u7684\u5c31\u662f\u6211\u4eec\u5199\u7684\u4ee3\u7801\uff0c<strong>\u66f4\u51c6\u786e\u7684\u662f\u7f16\u8bd1\u540e\u7684\u53ef\u6267\u884c\u673a\u5668\u6307\u4ee4<\/strong>\u3002\u90a3\u4e48\u8fd9\u4e9b\u673a\u5668\u6307\u4ee4\u53c8\u662f\u4ece\u54ea\u91cc\u6765\u7684\u5462\uff1f\u7b54\u6848\u662f\u4ece\u53ef\u6267\u884c\u6587\u4ef6\u4e2d\u52a0\u8f7d\u5230\u5185\u5b58\u7684\uff0c\u53ef\u6267\u884c\u7a0b\u5e8f\u4e2d\u7684\u4ee3\u7801\u533a\u5c31\u662f\u7528\u6765\u521d\u59cb\u5316\u8fdb\u7a0b\u5730\u5740\u7a7a\u95f4\u4e2d\u7684\u4ee3\u7801\u533a\u7684\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"846\" height=\"286\" src=\"https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745595917-image.png\" alt=\"\" class=\"wp-image-1009\" srcset=\"https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745595917-image.png 846w, https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745595917-image-300x101.png 300w, https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745595917-image-768x260.png 768w\" sizes=\"auto, (max-width: 846px) 100vw, 846px\" \/><\/figure>\n\n\n\n<p>\u7ebf\u7a0b\u4e4b\u95f4\u5171\u4eab\u4ee3\u7801\u533a\uff0c<strong>\u8fd9\u5c31\u610f\u5473\u7740\u7a0b\u5e8f\u4e2d\u7684\u4efb\u4f55\u4e00\u4e2a\u51fd\u6570\u90fd\u53ef\u4ee5\u653e\u5230\u7ebf\u7a0b\u4e2d\u53bb\u6267\u884c\uff0c\u4e0d\u5b58\u5728\u67d0\u4e2a\u51fd\u6570\u53ea\u80fd\u88ab\u7279\u5b9a\u7ebf\u7a0b\u6267\u884c\u7684\u60c5\u51b5<\/strong>\u3002<\/p>\n\n\n\n<h5 class=\"wp-block-heading\">\u6570\u636e\u533a<\/h5>\n\n\n\n<p>\u8fdb\u7a0b\u5730\u5740\u7a7a\u95f4\u4e2d\u7684\u6570\u636e\u533a\uff0c\u8fd9\u91cc\u5b58\u653e\u7684\u5c31\u662f\u6240\u8c13\u7684\u5168\u5c40\u53d8\u91cf\u3002\u4ec0\u4e48\u662f\u5168\u5c40\u53d8\u91cf\uff1f\u6240\u8c13\u5168\u5c40\u53d8\u91cf\u5c31\u662f\u90a3\u4e9b\u4f60\u5b9a\u4e49\u5728\u51fd\u6570\u4e4b\u5916\u7684\u53d8\u91cf\uff0c\u5728C\u8bed\u8a00\u4e2d\u5c31\u50cf\u8fd9\u6837\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code><code>char c; <em>\/\/ \u5168\u5c40\u53d8\u91cf<\/em><\/code><code><br><\/code><code>void func() {<\/code><code>    <\/code><code>}<\/code><\/code><\/pre>\n\n\n\n<p>\u5176\u4e2d\u5b57\u7b26c\u5c31\u662f\u5168\u5c40\u53d8\u91cf\uff0c\u5b58\u653e\u5728\u8fdb\u7a0b\u5730\u5740\u7a7a\u95f4\u4e2d\u7684\u6570\u636e\u533a\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"780\" height=\"543\" src=\"https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745596070-image.png\" alt=\"\" class=\"wp-image-1010\" srcset=\"https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745596070-image.png 780w, https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745596070-image-300x209.png 300w, https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745596070-image-768x535.png 768w\" sizes=\"auto, (max-width: 780px) 100vw, 780px\" \/><\/figure>\n\n\n\n<p>\u5728\u7a0b\u5e8f\u5458\u8fd0\u884c\u671f\u95f4\uff0c\u4e5f\u5c31\u662frun time\uff0c<strong>\u6570\u636e\u533a\u4e2d\u7684\u5168\u5c40\u53d8\u91cf\u6709\u4e14\u4ec5\u6709\u4e00\u4e2a\u5b9e\u4f8b\uff0c\u6240\u6709\u7684\u7ebf\u7a0b\u90fd\u53ef\u4ee5\u8bbf\u95ee\u5230\u8be5\u5168\u5c40\u53d8\u91cf<\/strong>\u3002\u503c\u5f97\u6ce8\u610f\u7684\u662f\uff0c\u5728C\u8bed\u8a00\u4e2d\u8fd8\u6709\u4e00\u7c7b\u7279\u6b8a\u7684\u201c\u5168\u5c40\u53d8\u91cf\u201d\uff0c\u90a3\u5c31\u662f\u7528static\u5173\u952e\u8bcd\u4fee\u9970\u8fc7\u7684\u53d8\u91cf\uff0c\u5c31\u50cf\u8fd9\u6837\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code><code>void func(){<\/code><code>    static int a = 10;<\/code><code>}<\/code><\/code><\/pre>\n\n\n\n<p>\u6ce8\u610f\u5230\uff0c<strong>\u867d\u7136\u53d8\u91cfa\u5b9a\u4e49\u5728\u51fd\u6570\u5185\u90e8\uff0c\u4f46\u53d8\u91cfa\u4f9d\u7136\u5177\u6709\u5168\u5c40\u53d8\u91cf\u7684\u7279\u6027<\/strong>\uff0c\u4e5f\u5c31\u662f\u8bf4\u53d8\u91cfa\u653e\u5728\u4e86\u8fdb\u7a0b\u5730\u5740\u7a7a\u95f4\u7684\u6570\u636e\u533a\u57df\uff0c<strong>\u5373\u4f7f\u51fd\u6570\u6267\u884c\u5b8c\u540e\u8be5\u53d8\u91cf\u4f9d\u7136\u5b58\u5728<\/strong>\uff0c\u800c\u666e\u901a\u7684\u5c40\u90e8\u53d8\u91cf\u968f\u7740\u51fd\u6570\u8c03\u7528\u7ed3\u675f\u548c\u51fd\u6570\u6808\u5e27\u4e00\u8d77\u88ab\u56de\u6536\u6389\u4e86\uff0c\u4f46\u8fd9\u91cc\u7684\u53d8\u91cfa\u4e0d\u4f1a\u88ab\u56de\u6536\uff0c\u56e0\u4e3a\u5176\u88ab\u653e\u5230\u4e86\u6570\u636e\u533a\u3002<br>\u8fd9\u6837\u7684\u53d8\u91cf\u5bf9\u6bcf\u4e2a\u7ebf\u7a0b\u6765\u8bf4\u4e5f\u662f\u53ef\u89c1\u7684\uff0c\u4e5f\u5c31\u662f\u8bf4\u6bcf\u4e2a\u7ebf\u7a0b\u90fd\u53ef\u4ee5\u8bbf\u95ee\u5230\u8be5\u53d8\u91cf\u3002&nbsp;<\/p>\n\n\n\n<h5 class=\"wp-block-heading\"><strong>\u5806\u533a<\/strong><\/h5>\n\n\n\n<p>\u5806\u533a\u662f\u7a0b\u5e8f\u5458\u6bd4\u8f83\u719f\u6089\u7684\uff0c\u6211\u4eec\u5728C\/C++\u4e2d\u7528malloc\u6216\u8005new\u51fa\u6765\u7684\u6570\u636e\u5c31\u5b58\u653e\u5728\u8fd9\u4e2a\u533a\u57df\uff0c\u5f88\u663e\u7136\uff0c<strong>\u53ea\u8981\u77e5\u9053\u53d8\u91cf\u7684\u5730\u5740\uff0c\u4e5f\u5c31\u662f\u6307\u9488\uff0c\u4efb\u4f55\u4e00\u4e2a\u7ebf\u7a0b\u90fd\u53ef\u4ee5\u8bbf\u95ee\u6307\u9488\u6307\u5411\u7684\u6570\u636e<\/strong>\uff0c\u56e0\u6b64\u5806\u533a\u4e5f\u662f\u7ebf\u7a0b\u5171\u4eab\u7684\u5c5e\u4e8e\u8fdb\u7a0b\u7684\u8d44\u6e90\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"912\" height=\"513\" src=\"https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745596182-image.png\" alt=\"\" class=\"wp-image-1011\" srcset=\"https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745596182-image.png 912w, https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745596182-image-300x169.png 300w, https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745596182-image-768x432.png 768w\" sizes=\"auto, (max-width: 912px) 100vw, 912px\" \/><\/figure>\n\n\n\n<h5 class=\"wp-block-heading\"><strong>\u6808\u533a<\/strong><\/h5>\n\n\n\n<p>\u5509\uff0c\u7b49\u7b49\uff01\u521a\u4e0d\u662f\u8bf4\u6808\u533a\u662f\u7ebf\u7a0b\u79c1\u6709\u8d44\u6e90\u5417\uff0c\u600e\u4e48\u8fd9\u4f1a\u513f\u53c8\u8bf4\u8d77\u6808\u533a\u4e86\uff1f\u786e\u5b9e\uff0c\u4ece\u7ebf\u7a0b\u8fd9\u4e2a\u62bd\u8c61\u7684\u6982\u5ff5\u4e0a\u6765\u8bf4\uff0c\u6808\u533a\u662f\u7ebf\u7a0b\u79c1\u6709\u7684\uff0c\u7136\u800c\u4ece\u5b9e\u9645\u7684\u5b9e\u73b0\u4e0a\u770b\uff0c<strong>\u6808\u533a\u5c5e\u4e8e\u7ebf\u7a0b\u79c1\u6709\u8fd9\u4e00\u89c4\u5219\u5e76\u6ca1\u6709\u4e25\u683c\u9075\u5b88<\/strong>\uff0c\u8fd9\u53e5\u8bdd\u662f\u4ec0\u4e48\u610f\u601d\uff1f\u901a\u5e38\u6765\u8bf4\uff0c\u6ce8\u610f\u8fd9\u91cc\u7684\u7528\u8bcd\u662f<strong>\u901a\u5e38<\/strong>\uff0c\u901a\u5e38\u6765\u8bf4\u6808\u533a\u662f\u7ebf\u7a0b\u79c1\u6709\uff0c\u65e2\u7136\u6709\u901a\u5e38\u5c31\u6709\u4e0d\u901a\u5e38\u7684\u65f6\u5019\u3002\u4e0d\u901a\u5e38\u662f\u56e0\u4e3a\u4e0d\u50cf\u8fdb\u7a0b\u5730\u5740\u7a7a\u95f4\u4e4b\u95f4\u7684\u4e25\u683c\u9694\u79bb\uff0c\u7ebf\u7a0b\u7684\u6808\u533a\u6ca1\u6709\u4e25\u683c\u7684\u9694\u79bb\u673a\u5236\u6765\u4fdd\u62a4\uff0c\u56e0\u6b64\u5982\u679c\u4e00\u4e2a\u7ebf\u7a0b\u80fd\u62ff\u5230\u6765\u81ea\u53e6\u4e00\u4e2a\u7ebf\u7a0b\u6808\u5e27\u4e0a\u7684\u6307\u9488\uff0c<strong>\u90a3\u4e48\u8be5\u7ebf\u7a0b\u5c31\u53ef\u4ee5\u6539\u53d8\u53e6\u4e00\u4e2a\u7ebf\u7a0b\u7684\u6808\u533a<\/strong>\uff0c\u4e5f\u5c31\u662f\u8bf4\u8fd9\u4e9b\u7ebf\u7a0b\u53ef\u4ee5\u4efb\u610f\u4fee\u6539\u672c\u5c5e\u4e8e\u53e6\u4e00\u4e2a\u7ebf\u7a0b\u6808\u533a\u4e2d\u7684\u53d8\u91cf\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"739\" height=\"642\" src=\"https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745596307-image.png\" alt=\"\" class=\"wp-image-1012\" srcset=\"https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745596307-image.png 739w, https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745596307-image-300x261.png 300w\" sizes=\"auto, (max-width: 739px) 100vw, 739px\" \/><\/figure>\n\n\n\n<p>\u8fd9\u4ece\u67d0\u79cd\u7a0b\u5ea6\u4e0a\u7ed9\u4e86\u7a0b\u5e8f\u5458\u6781\u5927\u7684\u4fbf\u5229\uff0c\u4f46\u540c\u65f6\uff0c\u8fd9\u4e5f\u4f1a\u5bfc\u81f4\u6781\u5176\u96be\u4ee5\u6392\u67e5\u5230\u7684bug\u3002\u8bd5\u60f3\u4e00\u4e0b\u4f60\u7684\u7a0b\u5e8f\u8fd0\u884c\u7684\u597d\u597d\u7684\uff0c\u7ed3\u679c\u67d0\u4e2a\u65f6\u523b\u7a81\u7136\u51fa\u95ee\u9898\uff0c\u5b9a\u4f4d\u5230\u51fa\u95ee\u9898\u4ee3\u7801\u884c\u540e\u6839\u672c\u5c31\u6392\u67e5\u4e0d\u5230\u539f\u56e0\uff0c\u4f60\u5f53\u7136\u662f\u6392\u67e5\u4e0d\u5230\u95ee\u9898\u539f\u56e0\u7684\uff0c\u56e0\u4e3a\u4f60\u7684\u7a0b\u5e8f\u672c\u6765\u5c31\u6ca1\u6709\u4efb\u4f55\u95ee\u9898\uff0c\u662f\u522b\u4eba\u7684\u95ee\u9898\u5bfc\u81f4\u4f60\u7684\u51fd\u6570\u6808\u5e27\u6570\u636e\u88ab\u5199\u574f\u4ece\u800c\u4ea7\u751fbug\uff0c\u8fd9\u6837\u7684\u95ee\u9898\u901a\u5e38\u5f88\u96be\u6392\u67e5\u5230\u539f\u56e0\uff0c\u9700\u8981\u5bf9\u6574\u4f53\u7684\u9879\u76ee\u4ee3\u7801\u975e\u5e38\u719f\u6089\uff0c\u5e38\u7528\u7684\u4e00\u4e9bdebug\u5de5\u5177\u8fd9\u65f6\u53ef\u80fd\u5df2\u7ecf\u6ca1\u6709\u591a\u5927\u4f5c\u7528\u4e86\u3002\u8bf4\u4e86\u8fd9\u4e48\u591a\uff0c\u90a3\u4e48\u540c\u5b66\u53ef\u80fd\u4f1a\u95ee\uff0c\u4e00\u4e2a\u7ebf\u7a0b\u662f\u600e\u6837\u4fee\u6539\u672c\u5c5e\u4e8e\u5176\u5b83\u7ebf\u7a0b\u7684\u6570\u636e\u5462\uff1f\u63a5\u4e0b\u6765\u6211\u4eec\u7528\u4e00\u4e2a\u4ee3\u7801\u793a\u4f8b\u8bb2\u89e3\u4e00\u4e0b\u3002&nbsp;<\/p>\n\n\n\n<h5 class=\"wp-block-heading\"><strong>\u4fee\u6539\u7ebf\u7a0b\u79c1\u6709\u6570\u636e<\/strong><\/h5>\n\n\n\n<p>\u4e0d\u8981\u62c5\u5fc3\uff0c\u4ee3\u7801\u7b80\u5355\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code><code>void thread(void* var) {<\/code><code>    int* p = (int*)var;<\/code><code>    *p = 2;<\/code><code>}<\/code><code><br><\/code><code>int main() {<\/code><code>&nbsp;&nbsp;&nbsp;&nbsp;int&nbsp;a&nbsp;=&nbsp;1;<\/code><code>    pthread_t tid;<\/code><code>    <\/code><code>    pthread_create(&amp;tid, NULL, thread, (void*)&amp;a);<\/code><code>    return 0;<\/code><code>}<\/code><\/code><\/pre>\n\n\n\n<p>\u8fd9\u6bb5\u4ee3\u7801\u662f\u4ec0\u4e48\u610f\u601d\u5462\uff1f<br>\u9996\u5148\u6211\u4eec\u5728\u4e3b\u7ebf\u7a0b\u7684\u6808\u533a\u5b9a\u4e49\u4e86\u4e00\u4e2a\u5c40\u90e8\u53d8\u91cf\uff0c\u4e5f\u5c31\u662f int a= 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size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1018\" height=\"648\" src=\"https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745596378-image.png\" alt=\"\" class=\"wp-image-1013\" srcset=\"https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745596378-image.png 1018w, https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745596378-image-300x191.png 300w, https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745596378-image-768x489.png 768w\" sizes=\"auto, (max-width: 1018px) 100vw, 1018px\" 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class=\"wp-block-heading\"><strong>\u52a8\u6001\u94fe\u63a5\u5e93<\/strong><\/h5>\n\n\n\n<p>\u8fdb\u7a0b\u5730\u5740\u7a7a\u95f4\u4e2d\u9664\u4e86\u4ee5\u4e0a\u8ba8\u8bba\u7684\u8fd9\u4e9b\u5b9e\u9645\u4e0a\u8fd8\u6709\u5176\u5b83\u5185\u5bb9\uff0c\u8fd8\u6709\u4ec0\u4e48\u5462\uff1f\u8fd9\u5c31\u8981\u4ece\u53ef\u6267\u884c\u7a0b\u5e8f\u8bf4\u8d77\u4e86\u3002\u4ec0\u4e48\u662f\u53ef\u6267\u884c\u7a0b\u5e8f\u5462\uff1f\u5728Windows\u4e2d\u5c31\u662f\u6211\u4eec\u719f\u6089\u7684exe\u6587\u4ef6\uff0c\u5728Linux\u4e16\u754c\u4e2d\u5c31\u662fELF\u6587\u4ef6\uff0c\u8fd9\u4e9b\u53ef\u4ee5\u88ab\u64cd\u4f5c\u7cfb\u7edf\u76f4\u63a5\u8fd0\u884c\u7684\u7a0b\u5e8f\u5c31\u662f\u6211\u4eec\u6240\u8bf4\u7684\u53ef\u6267\u884c\u7a0b\u5e8f\u3002\u90a3\u4e48\u53ef\u6267\u884c\u7a0b\u5e8f\u662f\u600e\u4e48\u6765\u7684\u5462\uff1f\u6709\u7684\u540c\u5b66\u53ef\u80fd\u4f1a\u8bf4\uff0c\u5e9f\u8bdd\uff0c\u4e0d\u5c31\u662f\u7f16\u8bd1\u5668\u751f\u6210\u7684\u5417\uff1f\u5b9e\u9645\u4e0a\u8fd9\u4e2a\u7b54\u6848\u53ea\u7b54\u5bf9\u4e86\u4e00\u534a\u3002\u5047\u8bbe\u6211\u4eec\u7684\u9879\u76ee\u6bd4\u8f83\u7b80\u5355\u53ea\u6709\u51e0\u4e2a\u6e90\u7801\u6587\u4ef6\uff0c\u7f16\u8bd1\u5668\u662f\u600e\u4e48\u628a\u8fd9\u51e0\u4e2a\u6e90\u4ee3\u7801\u6587\u4ef6\u8f6c\u6362\u4e3a\u6700\u7ec8\u7684\u4e00\u4e2a\u53ef\u6267\u884c\u7a0b\u5e8f\u5462\uff1f\u539f\u6765\uff0c\u7f16\u8bd1\u5668\u5728\u5c06\u53ef\u6267\u884c\u7a0b\u5e8f\u7ffb\u8bd1\u6210\u673a\u5668\u6307\u4ee4\u540e\uff0c\u63a5\u4e0b\u6765\u8fd8\u6709\u4e00\u4e2a\u91cd\u8981\u7684\u6b65\u9aa4\uff0c\u8fd9\u5c31\u662f\u94fe\u63a5\uff0c\u94fe\u63a5\u5b8c\u6210\u540e\u751f\u6210\u7684\u624d\u662f\u53ef\u6267\u884c\u7a0b\u5e8f\u3002\u5b8c\u6210\u94fe\u63a5\u8fd9\u4e00\u8fc7\u7a0b\u7684\u5c31\u662f\u94fe\u63a5\u5668\u3002\u4f60\u4e5f\u77e5\u9053\u4ee3\u7801\u7f16\u8bd1\u540e->\u76ee\u6807\u6587\u4ef6->\u94fe\u63a5\u5668->\u52a0\u6807\u51c6\u5e93\u6587\u4ef6->\u53ef\u6267\u884c\u7a0b\u5e8f\u3002<\/p>\n\n\n\n<p>\u5176\u4e2d\u94fe\u63a5\u5668\u53ef\u4ee5\u6709\u4e24\u79cd\u94fe\u63a5\u65b9\u5f0f\uff0c\u8fd9\u5c31\u662f<strong>\u9759\u6001\u94fe\u63a5<\/strong>\u548c<strong>\u52a8\u6001\u94fe\u63a5<\/strong>\u3002\u9759\u6001\u94fe\u63a5\u7684\u610f\u601d\u662f\u8bf4\u628a\u6240\u6709\u7684\u673a\u5668\u6307\u4ee4\u4e00\u80a1\u8111\u5168\u90e8\u6253\u5305\u5230\u53ef\u6267\u884c\u7a0b\u5e8f\u4e2d\uff0c\u52a8\u6001\u94fe\u63a5\u7684\u610f\u601d\u662f\u6211\u4eec\u4e0d\u628a\u52a8\u6001\u94fe\u63a5\u7684\u90e8\u5206\u6253\u5305\u5230\u53ef\u6267\u884c\u7a0b\u5e8f\uff0c\u800c\u662f\u5728\u53ef\u6267\u884c\u7a0b\u5e8f\u8fd0\u884c\u8d77\u6765\u540e\u53bb\u5185\u5b58\u4e2d\u627e\u52a8\u6001\u94fe\u63a5\u7684\u90a3\u90e8\u5206\u4ee3\u7801\uff0c\u8fd9\u5c31\u662f\u6240\u8c13\u7684\u9759\u6001\u94fe\u63a5\u548c\u52a8\u6001\u94fe\u63a5\u3002\u52a8\u6001\u94fe\u63a5\u4e00\u4e2a\u663e\u800c\u6613\u89c1\u7684\u597d\u5904\u5c31\u662f\u53ef\u6267\u884c\u7a0b\u5e8f\u7684\u5927\u5c0f\u4f1a\u5f88\u5c0f\uff0c\u5c31\u50cf\u6211\u4eec\u5728Windows\u4e0b\u770b\u4e00\u4e2aexe\u6587\u4ef6\u53ef\u80fd\u5f88\u5c0f\uff0c<strong>\u90a3\u4e48\u8be5exe\u5f88\u53ef\u80fd\u662f\u52a8\u6001\u94fe\u63a5\u7684\u65b9\u5f0f\u751f\u6210\u7684<\/strong>\u3002\u800c\u52a8\u6001\u94fe\u63a5\u7684\u90e8\u5206\u751f\u6210\u7684\u5e93\u5c31\u662f\u6211\u4eec\u719f\u6089\u7684\u52a8\u6001\u94fe\u63a5\u5e93\uff0c\u5728Windows\u4e0b\u662f\u4ee5DLL\u7ed3\u5c3e\u7684\u6587\u4ef6\uff0c\u5728Linux\u4e0b\u662f\u4ee5so\u7ed3\u5c3e\u7684\u6587\u4ef6\u3002\u8bf4\u4e86\u8fd9\u4e48\u591a\uff0c\u8fd9\u548c\u7ebf\u7a0b\u5171\u4eab\u8d44\u6e90\u6709\u4ec0\u4e48\u5173\u7cfb\u5462\uff1f\u539f\u6765\u5982\u679c\u4e00\u4e2a\u7a0b\u5e8f\u662f\u52a8\u6001\u94fe\u63a5\u751f\u6210\u7684\uff0c<strong>\u90a3\u4e48\u5176\u5730\u5740\u7a7a\u95f4\u4e2d\u6709\u4e00\u90e8\u5206\u5305\u542b\u7684\u5c31\u662f\u52a8\u6001\u94fe\u63a5\u5e93<\/strong>\uff0c\u5426\u5219\u7a0b\u5e8f\u5c31\u8fd0\u884c\u4e0d\u8d77\u6765\u4e86\uff0c\u8fd9\u4e00\u90e8\u5206\u7684\u5730\u5740\u7a7a\u95f4\u4e5f\u662f\u88ab\u6240\u6709\u7ebf\u7a0b\u6240\u5171\u4eab\u7684\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"713\" height=\"646\" src=\"https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745596797-image.png\" alt=\"\" class=\"wp-image-1014\" srcset=\"https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745596797-image.png 713w, https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745596797-image-300x272.png 300w\" sizes=\"auto, (max-width: 713px) 100vw, 713px\" \/><\/figure>\n\n\n\n<p>\u4e5f\u5c31\u662f\u8bf4\u8fdb\u7a0b\u4e2d\u7684\u6240\u6709\u7ebf\u7a0b\u90fd\u53ef\u4ee5\u4f7f\u7528\u52a8\u6001\u94fe\u63a5\u5e93\u4e2d\u7684\u4ee3\u7801\u3002<\/p>\n\n\n\n<p>\u6700\u540e\uff0c\u5982\u679c\u7a0b\u5e8f\u5728\u8fd0\u884c\u8fc7\u7a0b\u4e2d\u6253\u5f00\u4e86\u4e00\u4e9b\u6587\u4ef6\uff0c\u90a3\u4e48\u8fdb\u7a0b\u5730\u5740\u7a7a\u95f4\u4e2d\u8fd8\u4fdd\u5b58\u6709\u6253\u5f00\u7684\u6587\u4ef6\u4fe1\u606f\uff0c\u8fdb\u7a0b\u6253\u5f00\u7684\u6587\u4ef6\u4e5f\u53ef\u4ee5\u88ab\u6240\u6709\u7684\u7ebf\u7a0b\u4f7f\u7528\uff0c\u8fd9\u4e5f\u5c5e\u4e8e\u7ebf\u7a0b\u95f4\u7684\u5171\u4eab\u8d44\u6e90\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"712\" height=\"646\" src=\"https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745596812-image.png\" alt=\"\" class=\"wp-image-1015\" srcset=\"https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745596812-image.png 712w, https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745596812-image-300x272.png 300w\" sizes=\"auto, (max-width: 712px) 100vw, 712px\" \/><\/figure>\n\n\n\n<p>\u5b9e\u9645\u4e0a\u5173\u4e8e\u7ebf\u7a0b\u79c1\u6709\u6570\u636e\u8fd8\u6709\u4e00\u9879\u6ca1\u6709\u8be6\u7ec6\u8bb2\u89e3\uff0c\u56e0\u4e3a\u518d\u8bb2\u4e0b\u53bb\u672c\u7bc7\u5c31\u6491\u7206\u4e86\uff0c\u800c\u4e14\u672c\u7bc7\u5df2\u7ecf\u8bb2\u89e3\u7684\u90e8\u5206\u8db3\u591f\u7528\u4e86\uff0c\u5269\u4e0b\u7684\u8fd9\u4e00\u70b9\u4ec5\u4ec5\u4f5c\u4e3a\u8865\u5145\uff0c\u4e5f\u5c31\u662f\u9009\u5b66\u90e8\u5206<\/p>\n\n\n\n<p>\u5173\u4e8e\u7ebf\u7a0b\u79c1\u6709\u6570\u636e\u8fd8\u6709\u4e00\u9879\u6280\u672f\uff0c\u90a3\u5c31\u662f\u7ebf\u7a0b\u5c40\u90e8\u5b58\u50a8\uff0cThread Local Storage\uff0cTLS\u3002\u8fd9\u662f\u4ec0\u4e48\u610f\u601d\u5462\uff1f\u5176\u5b9e\u4ece\u540d\u5b57\u4e0a\u4e5f\u53ef\u4ee5\u770b\u51fa\uff0c\u6240\u8c13\u7ebf\u7a0b\u5c40\u90e8\u5b58\u50a8\uff0c\u662f\u6307\u5b58\u653e\u5728\u8be5\u533a\u57df\u4e2d\u7684\u53d8\u91cf\u6709\u4e24\u4e2a\u542b\u4e49\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5b58\u653e\u5728\u8be5\u533a\u57df\u4e2d\u7684\u53d8\u91cf\u662f\u5168\u5c40\u53d8\u91cf\uff0c\u6240\u6709\u7ebf\u7a0b\u90fd\u53ef\u4ee5\u8bbf\u95ee<\/li>\n\n\n\n<li>\u867d\u7136\u770b\u4e0a\u53bb\u6240\u6709\u7ebf\u7a0b\u8bbf\u95ee\u7684\u90fd\u662f\u540c\u4e00\u4e2a\u53d8\u91cf\uff0c\u4f46\u8be5\u5168\u5c40\u53d8\u91cf\u72ec\u5c5e\u4e8e\u4e00\u4e2a\u7ebf\u7a0b\uff0c\u4e00\u4e2a\u7ebf\u7a0b\u5bf9\u6b64\u53d8\u91cf\u7684\u4fee\u6539\u5bf9\u5176\u4ed6\u7ebf\u7a0b\u4e0d\u53ef\u89c1\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u8bf4\u4e86\u8fd9\u4e48\u591a\u8fd8\u662f\u6ca1\u61c2\u6709\u6ca1\u6709\uff1f\u6ca1\u5173\u7cfb\uff0c\u63a5\u4e0b\u6765\u770b\u5b8c\u8fd9\u4e24\u6bb5\u4ee3\u7801\u8fd8\u4e0d\u61c2\u4f60\u6765\u6253\u6211\u3002\u6211\u4eec\u5148\u6765\u770b\u7b2c\u4e00\u6bb5\u4ee3\u7801\uff0c\u4e0d\u7528\u62c5\u5fc3\uff0c\u8fd9\u6bb5\u4ee3\u7801\u975e\u5e38\u975e\u5e38\u7684\u7b80\u5355\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code><code>int a = 1; <em>\/\/ \u5168\u5c40\u53d8\u91cf<\/em><\/code><code><br><\/code><code>void print_a() {<\/code><code>    cout&lt;&lt;a&lt;&lt;endl;<\/code><code>}<\/code><code><br><\/code><code>void run() {<\/code><code>    ++a;<\/code><code>    print_a();<\/code><code>}<\/code><code><br><\/code><code>void main() {<\/code><code>    thread t1(run);<\/code><code>    t1.join();<\/code><code><br><\/code><code>    thread t2(run);<\/code><code>    t2.join();<\/code><code>}<\/code><\/code><\/pre>\n\n\n\n<p>\u600e\u4e48\u6837\uff0c\u8fd9\u6bb5\u4ee3\u7801\u8db3\u591f\u7b80\u5355\u5427\uff0c\u4e0a\u8ff0\u4ee3\u7801\u662f\u7528C++11\u5199\u7684\uff0c\u6211\u6765\u8bb2\u89e3\u4e0b\u8fd9\u6bb5\u4ee3\u7801\u662f\u4ec0\u4e48\u610f\u601d\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u9996\u5148\u6211\u4eec\u521b\u5efa\u4e86\u4e00\u4e2a\u5168\u5c40\u53d8\u91cfa\uff0c\u521d\u59cb\u503c\u4e3a1<\/li>\n\n\n\n<li>\u5176\u6b21\u6211\u4eec\u521b\u5efa\u4e86\u4e24\u4e2a\u7ebf\u7a0b\uff0c\u6bcf\u4e2a\u7ebf\u7a0b\u5bf9\u53d8\u91cfa\u52a01<\/li>\n\n\n\n<li>\u7ebf\u7a0b\u7684join\u51fd\u6570\u8868\u793a\u8be5\u7ebf\u7a0b\u8fd0\u884c\u5b8c\u6bd5\u540e\u624d\u7ee7\u7eed\u8fd0\u884c\u63a5\u4e0b\u6765\u7684\u4ee3\u7801<\/li>\n<\/ul>\n\n\n\n<p>\u90a3\u4e48\u8fd9\u6bb5\u4ee3\u7801\u7684\u8fd0\u884c\u8d77\u6765\u4f1a\u6253\u5370\u4ec0\u4e48\u5462\uff1f\u5168\u5c40\u53d8\u91cfa\u7684\u521d\u59cb\u503c\u4e3a1\uff0c\u7b2c\u4e00\u4e2a\u7ebf\u7a0b\u52a01\u540ea\u53d8\u4e3a2\uff0c\u56e0\u6b64\u4f1a\u6253\u53702\uff1b\u7b2c\u4e8c\u4e2a\u7ebf\u7a0b\u518d\u6b21\u52a01\u540ea\u53d8\u4e3a3\uff0c\u56e0\u6b64\u4f1a\u6253\u53703\uff0c\u8ba9\u6211\u4eec\u6765\u770b\u4e00\u4e0b\u8fd0\u884c\u7ed3\u679c\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code><code>2<\/code><code>3<\/code><\/code><\/pre>\n\n\n\n<p>\u770b\u6765\u6211\u4eec\u5206\u6790\u7684\u6ca1\u9519\uff0c\u5168\u5c40\u53d8\u91cf\u5728\u4e24\u4e2a\u7ebf\u7a0b\u5206\u522b\u52a01\u540e\u6700\u7ec8\u53d8\u4e3a3\u3002\u63a5\u4e0b\u6765\u6211\u4eec\u5bf9\u53d8\u91cfa\u7684\u5b9a\u4e49\u7a0d\u4f5c\u4fee\u6539\uff0c\u5176\u5b83\u4ee3\u7801\u4e0d\u505a\u6539\u52a8\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>__thread int a = 1; <em>\/\/ \u7ebf\u7a0b\u5c40\u90e8\u5b58\u50a8<\/em><\/code><\/pre>\n\n\n\n<p>\u6211\u4eec\u770b\u5230\u5168\u5c40\u53d8\u91cfa\u524d\u9762\u52a0\u4e86\u4e00\u4e2a__thread\u5173\u952e\u8bcd\u7528\u6765\u4fee\u9970\uff0c\u4e5f\u5c31\u662f\u8bf4\u6211\u4eec\u544a\u8bc9\u7f16\u8bd1\u5668\u628a\u53d8\u91cfa\u653e\u5728\u7ebf\u7a0b\u5c40\u90e8\u5b58\u50a8\u4e2d\uff0c\u90a3\u8fd9\u4f1a\u5bf9\u7a0b\u5e8f\u5e26\u6765\u54ea\u4e9b\u6539\u53d8\u5462\uff1f\u7b80\u5355\u8fd0\u884c\u4e00\u4e0b\u5c31\u77e5\u9053\u4e86\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code><code>2<\/code><code>2<\/code><\/code><\/pre>\n\n\n\n<p>\u548c\u4f60\u60f3\u7684\u4e00\u6837\u5417\uff1f\u6709\u7684\u540c\u5b66\u53ef\u80fd\u4f1a\u5927\u5403\u4e00\u60ca\uff0c\u4e3a\u4ec0\u4e48\u6211\u4eec\u660e\u660e\u5bf9\u53d8\u91cfa\u52a0\u4e86\u4e24\u6b21\uff0c\u4f46\u7b2c\u4e8c\u6b21\u8fd0\u884c\u4e3a\u4ec0\u4e48\u8fd8\u662f\u6253\u53702\u800c\u4e0d\u662f3\u5462\uff1f\u60f3\u4e00\u60f3\u8fd9\u662f\u4e3a\u4ec0\u4e48\u3002\u539f\u6765\uff0c\u8fd9\u5c31\u662f\u7ebf\u7a0b\u5c40\u90e8\u5b58\u50a8\u7684\u4f5c\u7528\u6240\u5728\uff0c\u7ebf\u7a0bt1\u5bf9\u53d8\u91cfa\u7684\u4fee\u6539\u4e0d\u4f1a\u5f71\u54cd\u5230\u7ebf\u7a0bt2\uff0c\u7ebf\u7a0bt1\u5728\u5c06\u53d8\u91cfa\u52a0\u52301\u540e\u53d8\u4e3a2\uff0c\u4f46\u5bf9\u4e8e\u7ebf\u7a0bt2\u6765\u8bf4\u6b64\u65f6\u53d8\u91cfa\u4f9d\u7136\u662f1\uff0c\u56e0\u6b64\u52a01\u540e\u4f9d\u7136\u662f2\u3002\u56e0\u6b64\uff0c<strong>\u7ebf\u7a0b\u5c40\u90e8\u5b58\u50a8\u53ef\u4ee5\u8ba9\u4f60\u4f7f\u7528\u4e00\u4e2a\u72ec\u5c5e\u4e8e\u7ebf\u7a0b\u7684\u5168\u5c40\u53d8\u91cf<\/strong>\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u867d\u7136\u8be5\u53d8\u91cf\u53ef\u4ee5\u88ab\u6240\u6709\u7ebf\u7a0b\u8bbf\u95ee\uff0c\u4f46\u8be5\u53d8\u91cf\u5728\u6bcf\u4e2a\u7ebf\u7a0b\u4e2d\u90fd\u6709\u4e00\u4e2a\u526f\u672c\uff0c\u4e00\u4e2a\u7ebf\u7a0b\u5bf9\u6539\u53d8\u91cf\u7684\u4fee\u6539\u4e0d\u4f1a\u5f71\u54cd\u5230\u5176\u5b83\u7ebf\u7a0b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"622\" height=\"561\" src=\"https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745596877-image.png\" alt=\"\" class=\"wp-image-1016\" srcset=\"https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745596877-image.png 622w, https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745596877-image-300x271.png 300w\" sizes=\"auto, (max-width: 622px) 100vw, 622px\" \/><\/figure>\n\n\n\n<h5 class=\"wp-block-heading\">\u56de\u5230\u7ebf\u7a0b\u79c1\u6709\u8d44\u6e90<\/h5>\n\n\n\n<p>\u7ebf\u7a0b\u8fd0\u884c\u7684\u672c\u8d28\u5176\u5b9e\u5c31\u662f\u51fd\u6570\u7684\u6267\u884c\uff0c\u51fd\u6570\u7684\u6267\u884c\u603b\u4f1a\u6709\u4e00\u4e2a\u6e90\u5934\uff0c\u8fd9\u4e2a\u6e90\u5934\u5c31\u662f\u6240\u8c13\u7684\u5165\u53e3\u51fd\u6570\uff0cCPU\u4ece\u5165\u53e3\u51fd\u6570\u5f00\u59cb\u6267\u884c\u4ece\u800c\u5f62\u6210\u4e00\u4e2a\u6267\u884c\u6d41\uff0c\u53ea\u4e0d\u8fc7\u6211\u4eec\u4eba\u4e3a\u7684\u7ed9\u6267\u884c\u6d41\u8d77\u4e00\u4e2a\u540d\u5b57\uff0c\u8fd9\u4e2a\u540d\u5b57\u5c31\u53eb\u7ebf\u7a0b\u3002<\/p>\n\n\n\n<p>\u7b54\u6848\u5c31\u662f\u6808\u533a\uff0c\u6bcf\u4e2a\u7ebf\u7a0b\u90fd\u6709\u4e00\u4e2a\u79c1\u6709\u7684\u6808\u533a\uff0c\u56e0\u6b64\u5728\u6808\u4e0a\u5206\u914d\u7684\u5c40\u90e8\u53d8\u91cf\u5c31\u662f\u7ebf\u7a0b\u79c1\u6709\u7684\uff0c\u65e0\u8bba\u6211\u4eec\u600e\u6837\u4f7f\u7528\u8fd9\u4e9b\u5c40\u90e8\u53d8\u91cf\u90fd\u4e0d\u7ba1\u5176\u5b83\u7ebf\u7a0b\u5c41\u4e8b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"977\" height=\"663\" src=\"https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745640327-image.png\" alt=\"\" class=\"wp-image-1018\" srcset=\"https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745640327-image.png 977w, https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745640327-image-300x204.png 300w, https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745640327-image-768x521.png 768w\" sizes=\"auto, (max-width: 977px) 100vw, 977px\" \/><\/figure>\n\n\n\n<p><strong>\u7ebf\u7a0b\u79c1\u6709\u7684\u6808\u533a\u5c31\u662f\u7ebf\u7a0b\u81ea\u5df1\u5bb6<\/strong>\u3002<\/p>\n\n\n\n<h5 class=\"wp-block-heading\"><strong>\u7ebf\u7a0b\u95f4\u5171\u4eab\u6570\u636e<\/strong><\/h5>\n\n\n\n<p>\u9664\u4e86\u4e0a\u4e00\u8282\u63d0\u5230\u7684\u5269\u4e0b\u7684\u533a\u57df\u5c31\u662f\u516c\u5171\u573a\u5408\u4e86\uff0c\u8fd9\u5305\u62ec\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7528\u4e8e\u52a8\u6001\u5206\u914d\u5185\u5b58\u7684\u5806\u533a\uff0c\u6211\u4eec\u7528C\/C++\u4e2d\u7684malloc\u6216\u8005new\u5c31\u662f\u5728\u5806\u533a\u4e0a\u7533\u8bf7\u7684\u5185\u5b58<\/li>\n\n\n\n<li>\u5168\u5c40\u533a\uff0c\u8fd9\u91cc\u5b58\u653e\u7684\u5c31\u662f\u5168\u5c40\u53d8\u91cf<\/li>\n\n\n\n<li>\u6587\u4ef6\uff0c\u6211\u4eec\u77e5\u9053\u7ebf\u7a0b\u662f\u5171\u4eab\u8fdb\u7a0b\u6253\u5f00\u7684\u6587\u4ef6<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"628\" height=\"572\" src=\"https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745640567-image.png\" alt=\"\" class=\"wp-image-1019\" srcset=\"https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745640567-image.png 628w, https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745640567-image-300x273.png 300w\" sizes=\"auto, (max-width: 628px) 100vw, 628px\" \/><\/figure>\n\n\n\n<p>\u6709\u7684\u540c\u5b66\u53ef\u80fd\u8bf4\uff0c\u7b49\u7b49\uff0c\u5728\u4e0a\u4e00\u7bc7\u6587\u7ae0\u4e0d\u662f\u8bf4\u8fd8\u6709\u4ee3\u7801\u533a\u548c\u52a8\u6001\u94fe\u63a5\u5e93\u5417\uff1f\u8981\u77e5\u9053\u8fd9\u4e24\u4e2a\u533a\u57df\u662f\u4e0d\u80fd\u88ab\u4fee\u6539\u7684\uff0c\u4e5f\u5c31\u662f\u8bf4\u8fd9\u4e24\u4e2a\u533a\u57df\u662f\u53ea\u8bfb\u7684\uff0c\u56e0\u6b64\u591a\u4e2a\u7ebf\u7a0b\u4f7f\u7528\u662f\u6ca1\u6709\u95ee\u9898\u7684\u3002\u5728\u521a\u624d\u6211\u4eec\u63d0\u5230\u7684\u5806\u533a\u3001\u6570\u636e\u533a\u4ee5\u53ca\u6587\u4ef6\uff0c\u8fd9\u4e9b\u5c31\u662f\u6240\u6709\u7684\u7ebf\u7a0b\u90fd\u53ef\u4ee5\u5171\u4eab\u7684\u8d44\u6e90\uff0c\u4e5f\u5c31\u662f\u516c\u5171\u573a\u6240\uff0c\u7ebf\u7a0b\u5728\u8fd9\u4e9b\u516c\u5171\u573a\u6240\u5c31\u4e0d\u80fd\u968f\u4fbf\u6d6a\u4e86\u3002\u7ebf\u7a0b\u4f7f\u7528\u8fd9\u4e9b\u5171\u4eab\u8d44\u6e90\u5fc5\u987b\u8981\u9075\u5b88\u79e9\u5e8f\uff0c\u8fd9\u4e2a\u79e9\u5e8f\u7684\u6838\u5fc3\u5c31\u662f<strong>\u5bf9\u5171\u4eab\u8d44\u6e90\u7684\u4f7f\u7528\u4e0d\u80fd\u59a8\u788d\u5230\u5176\u5b83\u7ebf\u7a0b<\/strong>\uff0c\u65e0\u8bba\u4f60\u4f7f\u7528\u5404\u79cd\u9501\u4e5f\u597d\u3001\u4fe1\u53f7\u91cf\u4e5f\u7f62\uff0c\u5176\u76ee\u7684\u90fd\u662f\u5728\u7ef4\u62a4\u516c\u5171\u573a\u6240\u7684\u79e9\u5e8f\u3002\u77e5\u9053\u4e86\u54ea\u4e9b\u662f\u7ebf\u7a0b\u79c1\u6709\u7684\uff0c\u54ea\u4e9b\u662f\u7ebf\u7a0b\u95f4\u5171\u4eab\u7684\uff0c\u63a5\u4e0b\u6765\u5c31\u7b80\u5355\u4e86\u3002\u503c\u5f97\u6ce8\u610f\u7684\u662f\uff0c\u5173\u4e8e\u7ebf\u7a0b\u5b89\u5168\u7684\u4e00\u5207\u95ee\u9898\u5168\u90e8\u56f4\u7ed5\u7740\u7ebf\u7a0b\u79c1\u6709\u6570\u636e\u4e0e\u7ebf\u7a0b\u5171\u4eab\u6570\u636e\u6765\u5904\u7406\uff0c<strong>\u6293\u4f4f\u4e86\u7ebf\u7a0b\u79c1\u6709\u8d44\u6e90\u548c\u5171\u4eab\u8d44\u6e90\u8fd9\u4e2a\u4e3b\u8981\u77db\u76fe\u4e5f\u5c31\u6293\u4f4f\u4e86\u89e3\u51b3\u7ebf\u7a0b\u5b89\u5168\u95ee\u9898\u7684\u6838\u5fc3<\/strong>\u3002\u63a5\u4e0b\u6765\u6211\u4eec\u770b\u4e0b\u5728\u5404\u79cd\u60c5\u51b5\u4e0b\u8be5\u600e\u6837\u5b9e\u73b0\u7ebf\u7a0b\u5b89\u5168\uff0c\u4f9d\u7136\u4ee5C\/C++\u4ee3\u7801\u4e3a\u4f8b\uff0c<strong>\u4f46\u662f\u8fd9\u91cc\u8bb2\u89e3\u7684\u65b9\u6cd5\u9002\u7528\u4e8e\u4efb\u4f55\u8bed\u8a00<\/strong>\uff0c\u8bf7\u653e\u5fc3\uff0c\u8fd9\u4e9b\u4ee3\u7801\u8db3\u591f\u7b80\u5355\u3002<\/p>\n\n\n\n<h5 class=\"wp-block-heading\"><strong>\u53ea\u4f7f\u7528\u7ebf\u7a0b\u79c1\u6709\u8d44\u6e90<\/strong><\/h5>\n\n\n\n<p>\u6211\u4eec\u6765\u770b\u8fd9\u6bb5\u4ee3\u7801\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code><code>int func() {<\/code><code>  int a = 1;<\/code><code>  int b = 1;<\/code><code>  return a + b;<\/code><code>}<\/code><\/code><\/pre>\n\n\n\n<p>\u8fd9\u6bb5\u4ee3\u7801\u5728\u524d\u9762\u63d0\u5230\u8fc7\uff0c<strong>\u65e0\u8bba\u4f60\u5728\u591a\u5c11\u4e2a\u7ebf\u7a0b\u4e2d\u600e\u4e48\u8c03\u7528\u4ec0\u4e48\u65f6\u5019\u8c03\u7528\uff0cfunc\u51fd\u6570\u90fd\u4f1a\u786e\u5b9a\u7684\u8fd4\u56de2<\/strong>\uff0c\u8be5\u51fd\u6570\u4e0d\u4f9d\u8d56\u4efb\u4f55\u5168\u5c40\u53d8\u91cf\uff0c\u4e0d\u4f9d\u8d56\u4efb\u4f55\u51fd\u6570\u53c2\u6570\uff0c\u4e14\u4f7f\u7528\u7684\u5c40\u90e8\u53d8\u91cf\u90fd\u662f\u7ebf\u7a0b\u79c1\u6709\u8d44\u6e90\uff0c\u8fd9\u6837\u7684\u4ee3\u7801\u4e5f\u88ab\u79f0\u4e3a\u65e0\u72b6\u6001\u51fd\u6570\uff0cstateless\uff08\u65e0\u72b6\u6001\uff09\uff0c\u5f88\u663e\u7136\u8fd9\u6837\u7684\u4ee3\u7801\u662f\u7ebf\u7a0b\u5b89\u5168\u7684\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"627\" height=\"575\" src=\"https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745640840-image.png\" alt=\"\" class=\"wp-image-1020\" srcset=\"https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745640840-image.png 627w, https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745640840-image-300x275.png 300w\" sizes=\"auto, (max-width: 627px) 100vw, 627px\" \/><\/figure>\n\n\n\n<p>\u8fd9\u6837\u7684\u4ee3\u7801\u8bf7\u653e\u5fc3\u5927\u80c6\u7684\u5728\u591a\u7ebf\u7a0b\u4e2d\u4f7f\u7528\uff0c\u4e0d\u4f1a\u6709\u4efb\u4f55\u95ee\u9898\u3002\u6709\u7684\u540c\u5b66\u53ef\u80fd\u4f1a\u8bf4\uff0c\u90a3\u5982\u679c\u6211\u4eec\u8fd8\u662f\u4f7f\u7528\u7ebf\u7a0b\u79c1\u6709\u8d44\u6e90\uff0c\u4f46\u662f\u4f20\u5165\u51fd\u6570\u53c2\u6570\u5462\uff1f<\/p>\n\n\n\n<p>\u8fd9\u6837\u7684\u4ee3\u7801\u662f\u7ebf\u7a0b\u5b89\u5168\u7684\u5417\uff1f\u81ea\u5df1\u5148\u60f3\u4e00\u60f3\u8fd9\u4e2a\u95ee\u9898\u3002\u7b54\u6848\u662f<strong>it depends<\/strong>\u8981\u770b\u60c5\u51b5\u3002\u770b\u4ec0\u4e48\u60c5\u51b5\u5462\uff1f<\/p>\n\n\n\n<p><strong>1\uff0c\u6309\u503c\u4f20\u53c2<\/strong>\u5982\u679c\u4f60\u4f20\u5165\u7684\u53c2\u6570\u7684\u65b9\u5f0f\u662f<strong>\u6309\u503c\u4f20\u5165<\/strong>\uff0c\u90a3\u4e48\u6ca1\u6709\u95ee\u9898\uff0c\u4ee3\u7801\u4f9d\u7136\u662f\u7ebf\u7a0b\u5b89\u5168\u7684\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code><code>int func(int num) {<\/code><code>  num++;<\/code><code>  return num;<\/code><code>}<\/code><\/code><\/pre>\n\n\n\n<p>\u8fd9\u8fd9\u6bb5\u4ee3\u7801\u65e0\u8bba\u5728\u591a\u5c11\u4e2a\u7ebf\u7a0b\u4e2d\u8c03\u7528\u600e\u4e48\u8c03\u7528\u4ec0\u4e48\u65f6\u5019\u8c03\u7528\u90fd\u4f1a\u6b63\u786e\u8fd4\u56de\u53c2\u6570\u52a01\u540e\u7684\u503c\u3002\u539f\u56e0\u5f88\u7b80\u5355\uff0c\u6309\u503c\u4f20\u5165\u7684\u8fd9\u4e9b\u53c2\u6570\u662f\u7ebf\u7a0b\u79c1\u6709\u8d44\u6e90\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"648\" height=\"608\" src=\"https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745641072-image.png\" alt=\"\" class=\"wp-image-1021\" srcset=\"https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745641072-image.png 648w, https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745641072-image-300x281.png 300w\" sizes=\"auto, (max-width: 648px) 100vw, 648px\" \/><\/figure>\n\n\n\n<p><strong>2\uff0c\u6309\u5f15\u7528\u4f20\u53c2<\/strong>\u4f46\u5982\u679c\u662f\u6309\u5f15\u7528\u4f20\u5165\u53c2\u6570\uff0c\u90a3\u4e48\u60c5\u51b5\u5c31\u4e0d\u4e00\u6837\u4e86\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code><code>int func(int* num) {<\/code><code>  ++(*num);<\/code><code>  return *num;<\/code><code>}<\/code><\/code><\/pre>\n\n\n\n<p>\u5982\u679c\u8c03\u7528\u8be5\u51fd\u6570\u7684\u7ebf\u7a0b\u4f20\u5165\u7684\u53c2\u6570\u662f\u7ebf\u7a0b\u79c1\u6709\u8d44\u6e90\uff0c\u90a3\u4e48\u8be5\u51fd\u6570\u4f9d\u7136\u662f\u7ebf\u7a0b\u5b89\u5168\u7684\uff0c\u80fd\u6b63\u786e\u7684\u8fd4\u56de\u53c2\u6570\u52a01\u540e\u7684\u503c\u3002\u4f46\u5982\u679c\u4f20\u5165\u7684\u53c2\u6570\u662f\u5168\u5c40\u53d8\u91cf\uff0c\u5c31\u50cf\u8fd9\u6837\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code><code>int global_num = 1;<\/code><code><br><\/code><code>int func(int* num) {<\/code><code>  ++(*num);<\/code><code>  return *num;<\/code><code>}<\/code><code><br><\/code><code><em>\/\/ \u7ebf\u7a0b1<\/em><\/code><code>void thread1() {<\/code><code>  func(&amp;global_num);<\/code><code>}<\/code><code><br><\/code><code>\/\/ \u7ebf\u7a0b2<\/code><code>void thread1() {<\/code><code>  func(&amp;global_num);<\/code><code>}<\/code><\/code><\/pre>\n\n\n\n<p>\u90a3\u6b64\u65f6func\u51fd\u6570\u5c06\u4e0d\u518d\u662f\u7ebf\u7a0b\u5b89\u5168\u4ee3\u7801\uff0c\u56e0\u4e3a\u4f20\u5165\u7684\u53c2\u6570\u6307\u5411\u4e86\u5168\u5c40\u53d8\u91cf\uff0c\u8fd9\u4e2a\u5168\u5c40\u53d8\u91cf\u662f\u6240\u6709\u7ebf\u7a0b\u53ef\u5171\u4eab\u8d44\u6e90\uff0c\u8fd9\u79cd\u60c5\u51b5\u4e0b\u5982\u679c\u4e0d\u6539\u53d8\u5168\u5c40\u53d8\u91cf\u7684\u4f7f\u7528\u65b9\u5f0f\uff0c\u90a3\u4e48\u5bf9\u8be5\u5168\u5c40\u53d8\u91cf\u7684\u52a01\u64cd\u4f5c\u5fc5\u987b\u65bd\u52a0\u67d0\u79cd\u79e9\u5e8f\uff0c\u6bd4\u5982\u52a0\u9501\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"684\" height=\"577\" src=\"https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745641124-image.png\" alt=\"\" class=\"wp-image-1022\" style=\"width:346px;height:auto\" srcset=\"https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745641124-image.png 684w, https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745641124-image-300x253.png 300w\" sizes=\"auto, (max-width: 684px) 100vw, 684px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"656\" height=\"577\" src=\"https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745641615-image.png\" alt=\"\" class=\"wp-image-1023\" style=\"width:360px;height:auto\" srcset=\"https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745641615-image.png 656w, https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745641615-image-300x264.png 300w\" sizes=\"auto, (max-width: 656px) 100vw, 656px\" \/><\/figure>\n\n\n\n<p>\u6709\u7684\u540c\u5b66\u53ef\u80fd\u4f1a\u8bf4\u5982\u679c\u6211\u4f20\u5165\u7684\u4e0d\u662f\u5168\u5c40\u53d8\u91cf\u7684\u6307\u9488(\u5f15\u7528)\u662f\u4e0d\u662f\u5c31\u4e0d\u4f1a\u6709\u95ee\u9898\u4e86\uff1f\u7b54\u6848\u4f9d\u7136\u662fit depends\uff0c\u8981\u770b\u60c5\u51b5\u3002\u5373\u4fbf\u6211\u4eec\u4f20\u5165\u7684\u53c2\u6570\u662f\u5728\u5806\u4e0a(heap)\u7528malloc\u6216new\u51fa\u6765\u7684\uff0c\u4f9d\u7136\u53ef\u80fd\u4f1a\u6709\u95ee\u9898\uff0c\u4e3a\u4ec0\u4e48\uff1f\u7b54\u6848\u5f88\u7b80\u5355\uff0c\u56e0\u4e3a<strong>\u5806\u4e0a\u7684\u8d44\u6e90\u4e5f\u662f\u6240\u6709\u7ebf\u7a0b\u53ef\u5171\u4eab\u7684<\/strong>\u3002<\/p>\n\n\n\n<p>\u5047\u5982\u6709\u4e24\u4e2a\u7ebf\u7a0b\u8c03\u7528func\u51fd\u6570\u65f6\u4f20\u5165\u7684\u6307\u9488(\u5f15\u7528)\u6307\u5411\u4e86\u540c\u4e00\u4e2a\u5806\u4e0a\u7684\u53d8\u91cf\uff0c\u90a3\u4e48\u8be5\u53d8\u91cf\u5c31\u53d8\u6210\u4e86\u8fd9\u4e24\u4e2a\u7ebf\u7a0b\u7684<strong>\u5171\u4eab\u8d44\u6e90<\/strong>\uff0c\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0bfunc\u51fd\u6570\u4f9d\u7136\u4e0d\u662f\u7ebf\u7a0b\u5b89\u5168\u7684\u3002\u6539\u8fdb\u4e5f\u5f88\u7b80\u5355\uff0c\u90a3\u5c31\u662f\u6bcf\u4e2a\u7ebf\u7a0b\u8c03\u7528func\u51fd\u6570\u4f20\u5165\u4e00\u4e2a\u72ec\u5c5e\u4e8e\u8be5\u7ebf\u7a0b\u7684\u8d44\u6e90\u5730\u5740\uff0c\u8fd9\u6837\u5404\u4e2a\u7ebf\u7a0b\u5c31\u4e0d\u4f1a\u59a8\u788d\u5230\u5bf9\u65b9\u4e86\uff0c\u56e0\u6b64\uff0c<strong>\u5199\u51fa\u7ebf\u7a0b\u5b89\u5168\u4ee3\u7801\u7684\u4e00\u5927\u539f\u5219\u5c31\u662f\u80fd\u7528\u7ebf\u7a0b\u79c1\u6709\u7684\u8d44\u6e90\u5c31\u7528\u79c1\u6709\u8d44\u6e90\uff0c\u7ebf\u7a0b\u4e4b\u95f4\u5c3d\u6700\u5927\u53ef\u80fd\u4e0d\u53bb\u4f7f\u7528\u5171\u4eab\u8d44\u6e90<\/strong>\u3002\u5982\u679c\u7ebf\u7a0b\u4e0d\u5f97\u5df2\u8981\u4f7f\u7528\u5168\u5c40\u8d44\u6e90\u5462\uff1f<\/p>\n\n\n\n<h5 class=\"wp-block-heading\"><strong>\u4f7f\u7528\u5168\u5c40\u8d44\u6e90<\/strong><\/h5>\n\n\n\n<p>\u4f7f\u7528\u5168\u5c40\u8d44\u6e90\u5c31\u4e00\u5b9a\u4e0d\u662f\u7ebf\u7a0b\u5b89\u5168\u4ee3\u7801\u5417\uff1f\u7b54\u6848\u4f9d\u7136\u662f\u8981\u770b\u60c5\u51b5\u3002\u5982\u679c\u4f7f\u7528\u7684\u5168\u5c40\u8d44\u6e90\u53ea\u5728\u7a0b\u5e8f\u8fd0\u884c\u65f6\u521d\u59cb\u5316\u4e00\u6b21\uff0c\u6b64\u540e\u6240\u6709\u4ee3\u7801\u5bf9\u5176\u4f7f\u7528\u90fd\u662f\u53ea\u8bfb\u7684\uff0c\u90a3\u4e48\u6ca1\u6709\u95ee\u9898\uff0c\u5c31\u50cf\u8fd9\u6837\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code><code>int global_num = 100; <em>\/\/\u521d\u59cb\u5316\u4e00\u6b21\uff0c\u6b64\u540e\u6ca1\u6709\u5176\u5b83\u4ee3\u7801\u4fee\u6539\u5176\u503c<\/em><\/code><code><br><\/code><code>int func() {<\/code><code>  return global_num;<\/code><code>}<\/code><\/code><\/pre>\n\n\n\n<p>\u6211\u4eec\u770b\u5230\uff0c\u5373\u4f7ffunc\u51fd\u6570\u4f7f\u7528\u4e86\u5168\u5c40\u53d8\u91cf\uff0c\u4f46\u8be5\u5168\u5c40\u53d8\u91cf\u53ea\u5728\u8fd0\u884c\u524d\u521d\u59cb\u5316\u4e00\u6b21\uff0c\u6b64\u540e\u7684\u4ee3\u7801\u90fd\u4e0d\u4f1a\u5bf9\u5176\u8fdb\u884c\u4fee\u6539\uff0c\u90a3\u4e48func\u51fd\u6570\u4f9d\u7136\u662f\u7ebf\u7a0b\u5b89\u5168\u7684\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"859\" height=\"593\" src=\"https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745641939-image.png\" alt=\"\" class=\"wp-image-1024\" srcset=\"https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745641939-image.png 859w, https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745641939-image-300x207.png 300w, https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745641939-image-768x530.png 768w\" sizes=\"auto, (max-width: 859px) 100vw, 859px\" \/><\/figure>\n\n\n\n<p>\u4f46\uff0c\u5982\u679c\u6211\u4eec\u7b80\u5355\u4fee\u6539\u4e00\u4e0bfunc\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><\/li>\n\n\n\n<li><\/li>\n\n\n\n<li><\/li>\n\n\n\n<li><\/li>\n\n\n\n<li><\/li>\n\n\n\n<li><\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-preformatted\"><code>int global_num = 100; <\/code><code><br><\/code><code>int func() {<\/code><code>  ++global_num;<\/code><code>  return global_num;<\/code><code>}<\/code><\/pre>\n\n\n\n<p>\u8fd9\u65f6\uff0cfunc\u51fd\u6570\u5c31\u4e0d\u518d\u662f\u7ebf\u7a0b\u5b89\u5168\u7684\u4e86\uff0c\u5bf9\u5168\u5c40\u53d8\u91cf\u7684\u4fee\u6539\u5fc5\u987b\u52a0\u9501\u4fdd\u62a4\u3002<\/p>\n\n\n\n<h5 class=\"wp-block-heading\"><strong>\u7ebf\u7a0b\u5c40\u90e8\u5b58\u50a8<\/strong><\/h5>\n\n\n\n<p>\u63a5\u4e0b\u6765\u6211\u4eec\u518d\u5bf9\u4e0a\u8ff0func\u51fd\u6570\u7b80\u5355\u4fee\u6539\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code><code>__thread int global_num = 100; <\/code><code><br><\/code><code>int func() {<\/code><code>  ++global_num;<\/code><code>  return global_num;<\/code><code>}<\/code><\/code><\/pre>\n\n\n\n<p>\u6211\u4eec\u770b\u5230\u5168\u5c40\u53d8\u91cfglobal_num\u524d\u52a0\u4e86\u5173\u952e\u8bcd__thread\u4fee\u9970\uff0c\u8fd9\u65f6\uff0cfunc\u4ee3\u7801\u5c31\u662f\u53c8\u662f\u7ebf\u7a0b\u5b89\u5168\u7684\u4e86\u3002\u4e3a\u4ec0\u4e48\u5462\uff1f\u5176\u5b9e\u5728\u4e0a\u4e00\u7bc7\u6587\u7ae0\u4e2d\u6211\u4eec\u8bb2\u8fc7\uff0c\u88ab__thread\u5173\u952e\u8bcd\u4fee\u9970\u8fc7\u7684\u53d8\u91cf\u653e\u5728\u4e86\u7ebf\u7a0b\u79c1\u6709\u5b58\u50a8\u4e2d\uff0cThread Local Storage\uff0c\u4ec0\u4e48\u610f\u601d\u5462\uff1f\u610f\u601d\u662f\u8bf4\u8fd9\u4e2a\u53d8\u91cf\u662f\u7ebf\u7a0b\u79c1\u6709\u7684\u5168\u5c40\u53d8\u91cf\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>global_num\u662f\u5168\u5c40\u53d8\u91cf<\/li>\n\n\n\n<li>global_num\u662f\u7ebf\u7a0b\u79c1\u6709\u7684<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"723\" height=\"564\" src=\"https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745641973-image.png\" alt=\"\" class=\"wp-image-1025\" srcset=\"https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745641973-image.png 723w, https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745641973-image-300x234.png 300w\" sizes=\"auto, (max-width: 723px) 100vw, 723px\" \/><\/figure>\n\n\n\n<p>\u5404\u4e2a\u7ebf\u7a0b\u5bf9global_num\u7684\u4fee\u6539\u4e0d\u4f1a\u5f71\u54cd\u5230\u5176\u5b83\u7ebf\u7a0b\uff0c\u56e0\u4e3a\u662f<strong>\u7ebf\u7a0b\u79c1\u6709\u8d44\u6e90<\/strong>\uff0c\u56e0\u6b64func\u51fd\u6570\u662f\u7ebf\u7a0b\u5b89\u5168\u7684\u3002\u8bf4\u5b8c\u4e86\u5c40\u90e8\u53d8\u91cf\u3001\u5168\u5c40\u53d8\u91cf\u3001\u51fd\u6570\u53c2\u6570\uff0c\u90a3\u4e48\u63a5\u4e0b\u6765\u5c31\u5230\u51fd\u6570\u8fd4\u56de\u503c\u4e86\u3002<\/p>\n\n\n\n<h5 class=\"wp-block-heading\"><strong>\u51fd\u6570\u8fd4\u56de\u503c<\/strong><\/h5>\n\n\n\n<p>\u8fd9\u91cc\u4e5f\u6709\u4e24\u79cd\u60c5\u51b5\uff0c\u4e00\u79cd\u662f\u51fd\u6570\u8fd4\u56de\u7684\u662f\u503c\uff1b\u53e6\u4e00\u79cd\u8fd4\u56de\u5bf9\u53d8\u91cf\u7684\u5f15\u7528\u3002<strong>1\uff0c\u8fd4\u56de\u7684\u662f\u503c<em><\/em><\/strong>\u6211\u4eec\u6765\u770b\u8fd9\u6837\u4e00\u6bb5\u4ee3\u7801\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code><code>int func() {<\/code><code>  int a = 100;<\/code><code>  return a;<\/code><code>}<\/code><\/code><\/pre>\n\n\n\n<p>\u6beb\u65e0\u7591\u95ee\uff0c\u8fd9\u6bb5\u4ee3\u7801\u662f\u7ebf\u7a0b\u5b89\u5168\u7684\uff0c\u65e0\u8bba\u6211\u4eec\u600e\u6837\u8c03\u7528\u8be5\u51fd\u6570\u90fd\u4f1a\u8fd4\u56de\u786e\u5b9a\u7684\u503c100\u3002<strong>2\uff0c\u8fd4\u56de\u7684\u662f\u5f15\u7528<em><\/em><\/strong>\u6211\u4eec\u628a\u4e0a\u8ff0\u4ee3\u7801\u7b80\u5355\u7684\u6539\u4e00\u6539\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code><code>int* func() {<\/code><code>  static int a = 100;<\/code><code>  return &amp;a;<\/code><code>}<\/code><\/code><\/pre>\n\n\n\n<p>\u5982\u679c\u6211\u4eec\u5728\u591a\u7ebf\u7a0b\u4e2d\u8c03\u7528\u8fd9\u6837\u7684\u51fd\u6570\uff0c\u90a3\u4e48\u63a5\u4e0b\u6765\u7b49\u7740\u4f60\u7684\u53ef\u80fd\u5c31\u662f\u96be\u4ee5\u8c03\u8bd5\u7684bug\u4ee5\u53ca\u6f2b\u6f2b\u7684\u52a0\u73ed\u957f\u591c\u3002\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"705\" height=\"575\" src=\"https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745642062-image.png\" alt=\"\" class=\"wp-image-1026\" srcset=\"https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745642062-image.png 705w, https:\/\/eve2333.top\/wp-content\/uploads\/2025\/04\/1745642062-image-300x245.png 300w\" sizes=\"auto, (max-width: 705px) 100vw, 705px\" \/><\/figure>\n\n\n\n<p>\u5f88\u663e\u7136\uff0c\u8fd9\u4e0d\u662f\u7ebf\u7a0b\u5b89\u5168\u4ee3\u7801\uff0c\u4ea7\u751fbug\u7684\u539f\u56e0\u4e5f\u5f88\u7b80\u5355\uff0c\u4f60\u5728\u4f7f\u7528\u8be5\u53d8\u91cf\u524d\u5176\u503c\u53ef\u80fd\u5df2\u7ecf\u88ab\u5176\u5b83\u7ebf\u7a0b\u4fee\u6539\u4e86\u3002\u56e0\u4e3a\u8be5\u51fd\u6570\u4f7f\u7528\u4e86\u4e00\u4e2a\u9759\u6001\u5168\u5c40\u53d8\u91cf\uff0c\u53ea\u8981\u80fd\u62ff\u5230\u8be5\u53d8\u91cf\u7684\u5730\u5740\u90a3\u4e48\u6240\u6709\u7ebf\u7a0b\u90fd\u53ef\u4ee5\u4fee\u6539\u8be5\u53d8\u91cf\u7684\u503c\uff0c\u56e0\u4e3a\u8fd9\u662f\u7ebf\u7a0b\u95f4\u7684\u5171\u4eab\u8d44\u6e90\uff0c\u4e0d\u5230\u4e07\u4e0d\u5f97\u5df2\u4e0d\u8981\u5199\u51fa\u4e0a\u8ff0\u4ee3\u7801\uff0c\u9664\u975e\u8001\u677f\u62ff\u5200\u67b6\u5728\u4f60\u8116\u5b50\u4e0a\u3002\u4f46\u662f\uff0c\u8bf7\u6ce8\u610f\uff0c<strong>\u6709\u4e00\u4e2a\u7279\u4f8b<\/strong>\uff0c\u8fd9\u79cd\u4f7f\u7528\u65b9\u6cd5\u53ef\u4ee5\u7528\u6765\u5b9e\u73b0\u8bbe\u8ba1\u6a21\u5f0f\u4e2d\u7684<strong>\u5355\u4f8b\u6a21\u5f0f<\/strong>\uff0c\u5c31\u50cf\u8fd9\u6837\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code><code>class S {<\/code><code>public:<\/code><code>  static S&amp; getInstance() {<\/code><code>    static S instance;<\/code><code>    return instance;<\/code><code>  }<\/code><code>private:<\/code><code>  S() {}<\/code><code>  <\/code><code><em>\/\/ \u5176\u5b83\u7701\u7565<\/em><\/code><code>}<\/code><\/code><\/pre>\n\n\n\n<p>\u4e3a\u4ec0\u4e48\u5462\uff1f\u56e0\u4e3a\u65e0\u8bba\u6211\u4eec\u8c03\u7528\u591a\u5c11\u6b21func\u51fd\u6570\uff0cstatic\u5c40\u90e8\u53d8\u91cf\u90fd\u53ea\u4f1a\u88ab\u521d\u59cb\u5316\u4e00\u6b21\uff0c\u8fd9\u79cd\u7279\u6027\u53ef\u4ee5\u5f88\u65b9\u4fbf\u7684\u8ba9\u6211\u4eec\u5b9e\u73b0\u5355\u4f8b\u6a21\u5f0f\u3002\u6700\u540e\u8ba9\u6211\u4eec\u6765\u770b\u4e0b\u8fd9\u79cd\u60c5\u51b5\uff0c\u90a3\u5c31\u662f\u5982\u679c\u6211\u4eec\u8c03\u7528\u4e00\u4e2a\u975e\u7ebf\u7a0b\u5b89\u5168\u7684\u51fd\u6570\uff0c\u90a3\u4e48\u6211\u4eec\u7684\u51fd\u6570\u662f\u7ebf\u7a0b\u5b89\u5168\u7684\u5417\uff1f<\/p>\n\n\n\n<h5 class=\"wp-block-heading\"><strong>\u8c03\u7528\u975e\u7ebf\u7a0b\u5b89\u5168\u4ee3\u7801<\/strong><\/h5>\n\n\n\n<p>\u5047\u5982\u4e00\u4e2a\u51fd\u6570A\u8c03\u7528\u53e6\u4e00\u4e2a\u51fd\u6570B\uff0c\u4f46B\u4e0d\u662f\u7ebf\u7a0b\u5b89\u5168\uff0c\u90a3\u4e48\u51fd\u6570A\u662f\u7ebf\u7a0b\u5b89\u5168\u7684\u5417\uff1f\u7b54\u6848\u4f9d\u7136\u662f\uff0c\u8981\u770b\u60c5\u51b5\u3002\u6211\u4eec\u770b\u4e0b\u8fd9\u6837\u4e00\u6bb5\u4ee3\u7801\uff0c\u8fd9\u6bb5\u4ee3\u7801\u5728\u4e4b\u524d\u8bb2\u89e3\u8fc7\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code><code>int global_num = 0;<\/code><code><br><\/code><code>int func() {<\/code><code>  ++global_num;<\/code><code>  return global_num;<\/code><code>}<\/code><\/code><\/pre>\n\n\n\n<p>\u6211\u4eec\u8ba4\u4e3afunc\u51fd\u6570\u662f\u975e\u7ebf\u7a0b\u5b89\u5168\u7684\uff0c\u56e0\u4e3afunc\u51fd\u6570\u4f7f\u7528\u4e86\u5168\u5c40\u53d8\u91cf\u5e76\u5bf9\u5176\u8fdb\u884c\u4e86\u4fee\u6539\uff0c\u4f46\u5982\u679c\u6211\u4eec\u8fd9\u6837\u8c03\u7528func\u51fd\u6570\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>mutex l;\n \nint funcA() {\n  l.lock();\n  func();\n  l.unlock();\n}<\/code><\/pre>\n\n\n\n<p>\u867d\u7136func\u51fd\u6570\u662f\u975e\u7ebf\u7a0b\u5b89\u5168\u7684\uff0c\u4f46\u662f\u6211\u4eec\u5728\u8c03\u7528\u8be5\u51fd\u6570\u524d\u52a0\u4e86\u4e00\u628a\u9501\u8fdb\u884c\u4fdd\u62a4\uff0c\u90a3\u4e48\u8fd9\u65f6funcA\u51fd\u6570\u5c31\u662f\u7ebf\u7a0b\u5b89\u5168\u7684\u4e86\uff0c\u5176\u672c\u8d28\u5c31\u662f\u6211\u4eec\u7528\u4e00\u628a\u9501\u95f4\u63a5\u7684\u4fdd\u62a4\u4e86\u5168\u5c40\u53d8\u91cf\u3002\u518d\u770b\u8fd9\u6837\u4e00\u6bb5\u4ee3\u7801\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code><code>int func(int *num) {<\/code><code>  ++(*num);<\/code><code>  return *num;<\/code><code>}<\/code><\/code><\/pre>\n\n\n\n<p>\u4e00\u822c\u6211\u4eec\u8ba4\u4e3afunc\u51fd\u6570\u662f\u975e\u7ebf\u7a0b\u5b89\u5168\u7684\uff0c\u56e0\u4e3a\u6211\u4eec\u4e0d\u77e5\u9053\u4f20\u5165\u7684\u6307\u9488\u662f\u4e0d\u662f\u6307\u5411\u4e86\u4e00\u4e2a\u5168\u5c40\u53d8\u91cf\uff0c\u4f46\u5982\u679c\u8c03\u7528func\u51fd\u6570\u7684\u4ee3\u7801\u662f\u8fd9\u6837\u7684\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code><code>void funcA() {<\/code><code>  int a = 100;<\/code><code>  func(&amp;a);<\/code><code>}<\/code><\/code><\/pre>\n\n\n\n<p>\u90a3\u4e48\u8fd9\u65f6funcA\u51fd\u6570\u4f9d\u7136\u662f\u7ebf\u7a0b\u5b89\u5168\u7684\uff0c\u56e0\u4e3a\u4f20\u5165\u7684\u53c2\u6570\u662f\u7ebf\u7a0b<strong>\u79c1\u6709<\/strong>\u7684\u5c40\u90e8\u53d8\u91cf\uff0c\u65e0\u8bba\u591a\u5c11\u7ebf\u7a0b\u8c03\u7528funcA\u90fd\u4e0d\u4f1a\u5e72\u6270\u5230\u5176\u5b83\u7ebf\u7a0b\u3002\u770b\u4e86\u5404\u79cd\u60c5\u51b5\u4e0b\u7684\u7ebf\u7a0b\u5b89\u5168\u95ee\u9898\uff0c\u6700\u540e\u8ba9\u6211\u4eec\u6765\u603b\u7ed3\u4e00\u4e0b\u5b9e\u73b0\u7ebf\u7a0b\u5b89\u5168\u4ee3\u7801\u90fd\u6709\u54ea\u4e9b\u63aa\u65bd\u3002<\/p>\n\n\n\n<h5 class=\"wp-block-heading\"><strong>\u5982\u4f55\u5b9e\u73b0\u7ebf\u7a0b\u5b89\u5168<\/strong><\/h5>\n\n\n\n<p>\u4ece\u4e0a\u9762\u5404\u79cd\u60c5\u51b5\u7684\u5206\u6790\u6765\u770b\uff0c\u5b9e\u73b0\u7ebf\u7a0b\u5b89\u5168\u65e0\u5916\u4e4e\u56f4\u7ed5\u7ebf\u7a0b\u79c1\u6709\u8d44\u6e90\u548c\u7ebf\u7a0b\u5171\u4eab\u8d44\u6e90\u8fd9\u4e24\u70b9\uff0c\u4f60\u9700\u8981\u8bc6\u522b\u51fa\u54ea\u4e9b\u662f\u7ebf\u7a0b\u79c1\u6709\uff0c\u54ea\u4e9b\u662f\u5171\u4eab\u7684\uff0c\u8fd9\u662f\u6838\u5fc3\uff0c\u7136\u540e\u5bf9\u75c7\u4e0b\u836f\u5c31\u53ef\u4ee5\u4e86\u3002<\/p>\n\n\n\n<ul 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