\u5143\u7d20\u5bf9\u8c61.addEventListener\uff08'\u4e8b\u4ef6\u7c7b\u578b'\uff0c\u8981\u6267\u884c\u7684\u51fd\u6570'\uff09<\/code><\/pre>\n\n\n\n\n- \u2022 \u4e8b\u4ef6\u76d1\u542c\u4e09\u8981\u7d20\uff1a<\/li>\n\n\n\n
- > \u4e8b\u4ef6\u6e90\uff1a\u90a3\u4e2adom\u5143\u7d20\u88ab\u4e8b\u4ef6\u89e6\u53d1\u4e86\uff0c\u8981\u83b7\u53d6dom\u5143\u7d20<\/li>\n\n\n\n
- > \u4e8b\u4ef6\u7c7b\u578b\uff1a\u7528\u4ec0\u4e48\u65b9\u5f0f\u89e6\u53d1\uff0c\u6bd4\u5982\u9f20\u6807\u5355\u51fbclick\u3001\u9f20\u6807\u7ecf\u8fc7mouseover\u7b49<\/li>\n\n\n\n
- > \u4e8b\u4ef6\u8c03\u7528\u7684\u51fd\u6570\uff1a\u8981\u505a\u4ec0\u4e48\u4e8b<\/li>\n<\/ul>\n\n\n\n
<style>\n.boxl {\nposition: absolute;\nright: 20px;\ntop: 10px;\nwidth: 20px;\nheight: 20px;\nbackground-color: H skyblue;\ntext-align: center;\nline-height: 20px;\nfont-size: 16px;\ncursor: pointer;\n} \n<\/style>\n<body>\n<div class=\"box\">\n\u6211\u662f\u5e7f\u544a\n<div class=\"boxl\">X<\/div>\n<\/div>\n<script>\n\/\/ 1.\u83b7\u53d6\u4e8b\u4ef6\u6e90\nconst boxl = document.querySelector('.boxl')\n\/\/\u5173\u95ed\u7684\u662f\u5927\u76d2\u5b50\nconst box = document.querySelector('.box')\n\/\/ 2.\u4e8b\u4ef6\u4fa6\u542c\nboxl.addEventListener('click', function () {\nbox. style. display = 'none'\n})\n<\/script>\n<\/body><\/code><\/pre>\n\n\n\n\u968f\u673a\u70b9\u540d\u6848\u4f8b<\/h2>\n\n\n\n<style>\n*i margin: 0;\npadding: 0;\ntext-align: center;\n}\n.box {\nwidth: 600px;\nmargin: 50px auto;\ndisplay: flex;\nfont-size: 25px;\nline-height: 40px;\n}\n.qs {\nwidth: 450px;\nheight: 40px;\ncolor: Ored;\n}\n.btns {\ntext-align: center;\n}\n.btns button {\nwidth: 120px;\nheight: 35px;\nmargin: 0 50px;\n}\n<\/style>\n\n<body>\n<h2>\u968f\u673a\u70b9\u540d<\/h2>\n<div class=\"box\">\n<span>\u540d\u5b57\u662f\uff1a<\/span>\n<div class=\u201cqs\u201d>\u8fd9\u91cc\u663e\u793a\u59d3\u540d<\/div>\n<\/div>\n<div class=\"btns\">\n<button class=\"start\">\u5f00\u59cb<\/button>\n<button class=\"end\">\u7ed3\u675f<button>\n<\/div>\n\n<script>\n\/\/\u6570\u636e\u6570\u7ec4\nlet timerId=0\nconst random=0\nconst arr = ['\u9a6c\u8d85'\uff0c'\u9ec4\u5fe0'\uff0c'\u8d75\u4e91'\uff0c'\u5173\u7fbd'\uff0c'\u5f20\u98de']\nconst qs = document.querySelector('.qs')\n\/\/1.1\u83b7\u53d6\u5f00\u59cb\u6309\u94ae\u5bf9\u8c61\nconst start = document.querySelector('.start')\/\/?????????\n\/\/1.2\u6dfb\u52a0\u70b9\u51fb\u4e8b\u4ef6\nstart.addEventListener(* click', function () {\ntimerld = setlnterval(function () {\n\/\/\u968f\u673a\u6570\nconst random = parseInt(Math.random() * arr.length)\n\/\/consoLe.Log(arr[random])\nqs.innerHTML = arr[random]\n}, 35) \n\n\/\/\u5982\u679c\u6570\u7ec4\u91cc\u9762\u53ea\u6709\u4e00\u4e2a\u503c\u4e86,\u8fd8\u9700\u8981\u62bd\u53d6\u5417? \u4e0d\u9700\u8981 \u8ba9\u4e24\u4e2a\u6309\u94ae\u7981\u7528\u5c31\u53ef\u4ee5\nif (arr.length === 1) {\n\/\/ start.disabLed = true\n\/\/ end.disabLed = true\nstart.disabled = end.disabled = true\n}\n})\n\/\/2.\u5173\u95ed\u6309\u94ae\u6a21\u5757\nconst end = document.querySelector('.end')\nend.addEventListener('click', function () {\nclearInterval(timerld)\n\/\/\u7ed3\u675f\u4e86,\u53ef\u4ee5\u5220\u9664\u6389\u5f53\u524d\u62bd\u53d6\u7684\u90a3\u4e2a\u6570\u7ec4\u5143\u7d20\narr.splice(random, 1)\nconsole.log(arr)\n})\n\n<\/script>\n<\/body><\/code><\/pre>\n\n\n\n\u51fd\u6570\u7684\u5783\u573e\u56de\u6536\u673a\u5236 \u200b<\/h2>\n\n\n\n
<\/p>\n\n\n\n
\u4ec0\u4e48\u662f\u4e8b\u4ef6\uff1f<\/h2>\n\n\n\n
\u4e8b\u4ef6\u662f\u5728\u7f16\u7a0b\u65f6\u7cfb\u7edf\u5185\u53d1\u751f\u7684 \u52a8\u4f5c \u6216\u8005\u53d1\u751f\u7684\u4e8b\u60c5\u3002\u6bd4\u5982\u7528\u6237\u5728\u7f51\u9875\u4e0a \u5355\u51fb \u4e00\u4e2a\u6309\u94ae
\u4ec0\u4e48\u662f\u4e8b\u4ef6\u76d1\u542c\uff1f
\u5c31\u662f\u8ba9\u7a0b\u5e8f\u68c0\u6d4b\u662f\u5426\u6709\u4e8b\u4ef6\u4ea7\u751f\uff0c\u4e00\u65e6\u6709\u4e8b\u4ef6\u89e6\u53d1\uff0c\u5c31\u7acb\u5373\u8c03\u7528\u4e00\u4e2a\u51fd\u6570\u505a\u51fa\u54cd\u5e94\uff0c\u4e5f\u79f0\u4e3a \u7ed1\u5b9a\u4e8b\u4ef6\u6216\u8005\u6ce8\u518c\u4e8b\u4ef6\uff0c \u6bd4\u5982\u9f20\u6807\u7ecf\u8fc7\u663e\u793a\u4e0b\u62c9\u83dc\u5355\uff0c\u6bd4\u5982\u70b9\u51fb\u53ef\u4ee5\u64ad\u653e\u8f6e\u64ad\u56fe\u7b49\u7b49\u3002
\u8bed\u6cd5\uff1a<\/p>\n\n\n\n
\u5143\u7d20\u5bf9\u8c61.addEventListener('\u4e8b\u4ef6\u7c7b\u578b', \u8981\u6267\u884c\u7684\u51fd\u6570)<\/code><\/pre>\n\n\n\n\u4e8b\u4ef6\u76d1\u542c\u4e09\u8981\u7d20\uff1a
\u4e8b\u4ef6\u6e90\uff1a \u4e8b\u4ef6\u88ab\u89e6\u53d1\u7684\u5bf9\u8c61 \u3002dom\u5143\u7d20\u88ab\u4e8b\u4ef6\u89e6\u53d1\u4e86\uff0c\u8981\u83b7\u53d6dom\u5143\u7d20
\u4e8b\u4ef6\u7c7b\u578b\uff1a \u7528\u4ec0\u4e48\u65b9\u5f0f\u89e6\u53d1\uff0c\u6bd4\u5982\u9f20\u6807\u5355\u51fb click\u3001\u9f20\u6807\u7ecf\u8fc7 mouseover \u7b49
\u4e8b\u4ef6\u8c03\u7528\u7684\u51fd\u6570\uff1a \u8981\u505a\u4ec0\u4e48\u4e8b<\/strong><\/p>\n\n\n\n<button>\u6309\u94ae<\/button>\n\n<script>\n\n const btn = document.querySelector('button')\n\n \/\/\u4fee\u6539\u5143\u7d20\u6837\u5f0f\n \n btn.addEventListener('click',function(){\n\n alert('\u4f60\u597d\u70b9\u51fb\u4e86\uff5e')\n\n})\n\n<\/script> <\/code><\/pre>\n\n\n\n\u6ce8\u610f\uff1a<\/strong><\/p>\n\n\n\n1. \u4e8b\u4ef6\u7c7b\u578b\u8981 \u52a0\u5f15\u53f7<\/p>\n\n\n\n
2. \u51fd\u6570\u662f\u70b9\u51fb\u4e4b\u540e\u518d\u53bb\u6267\u884c\uff0c\u6bcf\u6b21\u70b9\u51fb\u90fd\u4f1a\u6267\u884c\u4e00\u6b21<\/p>\n\n\n\n
\u6848\u4f8b\uff1a\u968f\u673a\u70b9\u540d<\/strong><\/p>\n\n\n\n<!DOCTYPE html>\n<html lang=\"en\">\n \n<head>\n <meta charset=\"UTF-8\">\n <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\n <title>Document<\/title>\n <style>\n * {\n margin: 0;\n padding: 0;\n }\n \n h2 {\n text-align: center;\n }\n \n .box {\n width: 600px;\n margin: 50px auto;\n display: flex;\n font-size: 25px;\n line-height: 40px;\n }\n \n .qs {\n \n width: 450px;\n height: 40px;\n color: red;\n \n }\n \n .btns {\n text-align: center;\n }\n \n .btns button {\n width: 120px;\n height: 35px;\n margin: 0 50px;\n }\n <\/style>\n<\/head>\n \n<body>\n <h2>\u968f\u673a\u70b9\u540d<\/h2>\n <div class=\"box\">\n <span>\u540d\u5b57\u662f\uff1a<\/span>\n <div class=\"qs\">\u8fd9\u91cc\u663e\u793a\u59d3\u540d<\/div>\n <\/div>\n <div class=\"btns\">\n <button class=\"start\">\u5f00\u59cb<\/button>\n <button class=\"end\">\u7ed3\u675f<\/button>\n <\/div>\n \n <script>\n \/\/ \u6570\u636e\u6570\u7ec4\n const arr = ['\u9a6c\u8d85', '\u9ec4\u5fe0', '\u8d75\u4e91', '\u5173\u7fbd', '\u5f20\u98de']\n \/\/ \u5b9a\u65f6\u5668\u7684\u5168\u5c40\u53d8\u91cf\n let timerId = 0\n \/\/ \u968f\u673a\u53f7\u8981\u5168\u5c40\u53d8\u91cf\n let random = 0\n \/\/ \u4e1a\u52a11.\u5f00\u59cb\u6309\u94ae\u6a21\u5757\n const qs = document.querySelector('.qs')\n \/\/ 1.1 \u83b7\u53d6\u5f00\u59cb\u6309\u94ae\u5bf9\u8c61\n const start = document.querySelector('.start')\n \/\/ 1.2 \u6dfb\u52a0\u70b9\u51fb\u4e8b\u4ef6\n start.addEventListener('click', function () {\n timerId = setInterval(function () {\n \/\/ \u968f\u673a\u6570\n random = parseInt(Math.random() * arr.length)\n \/\/ console.log(arr[random])\n qs.innerHTML = arr[random]\n }, 35)\n \/\/ \u5982\u679c\u6570\u7ec4\u91cc\u9762\u53ea\u6709\u4e00\u4e2a\u503c\u4e86\uff0c\u8fd8\u9700\u8981\u62bd\u53d6\u5417\uff1f \u4e0d\u9700\u8981 \u8ba9\u4e24\u4e2a\u6309\u94ae\u7981\u7528\u5c31\u53ef\u4ee5\n if (arr.length === 1) {\n \/\/ start.disabled = true\n \/\/ end.disabled = true\n start.disabled = end.disabled = true\n }\n })\n \n \/\/ 2. \u5173\u95ed\u6309\u94ae\u6a21\u5757\n const end = document.querySelector('.end')\n end.addEventListener('click', function () {\n clearInterval(timerId)\n \/\/ \u7ed3\u675f\u4e86\uff0c\u53ef\u4ee5\u5220\u9664\u6389\u5f53\u524d\u62bd\u53d6\u7684\u90a3\u4e2a\u6570\u7ec4\u5143\u7d20\n arr.splice(random, 1)\n console.log(arr)\n })\n <\/script>\n<\/body>\n \n<\/html><\/code><\/pre>\n\n\n\n\u8fde\u7eed\u70b9\u4e24\u6b21\u5f00\u59cb\u6309\u94ae\uff0c\u5c31\u4f1a\u6709bug\uff0c\u505c\u4e0d\u4e0b\u6765\uff0c\u95ee\u9898\u5728\u4e8e\u4f60\u6bcf\u6b21\u70b9\u51fb\u5f00\u59cb\u6309\u94ae\u90fd\u4f1a\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u5b9a\u65f6\u5668\uff0c\u4f46\u662f\u7ed3\u675f\u6309\u94ae\u53ea\u6e05\u9664\u6700\u540e\u4e00\u4e2a\u5b9a\u65f6\u5668\uff0c\u56e0\u6b64\u9700\u8981\u5728\u70b9\u51fb\u5f00\u59cb\u6309\u94ae\u4e4b\u524d\u6e05\u9664\u4e4b\u524d\u7684\u5b9a\u65f6\u5668\u300211<\/p>\n\n\n\n
\u4e8b\u4ef6\u76d1\u542c\u7248\u672c<\/strong>
\u4e8b\u4ef6\u6e90.on\u4e8b\u4ef6 = function() { }
\u4e8b\u4ef6\u6e90.addEventListener(\u4e8b\u4ef6\uff0c \u4e8b\u4ef6\u5904\u7406\u51fd\u6570)
\u533a\u522b\uff1a
on\u65b9\u5f0f\u4f1a\u88ab\u8986\u76d6\uff0c addEventListener \u65b9\u5f0f\u53ef\u7ed1\u5b9a\u591a\u6b21\uff0c\u62e5\u6709\u4e8b\u4ef6\u66f4\u591a\u7279\u6027\uff0c\u63a8\u8350<\/p>\n\n\n\n\u4e8b\u4ef6\u6e90\uff0c\u4e8b\u4ef6\u7c7b\u578b\uff0c\u4e8b\u4ef6\u6267\u884c\u51fd\u6570<\/strong> \u200b<\/p>\n\n\n\n![\"\"](\"https:\/\/eve2333.top\/wp-content\/uploads\/2024\/10\/1729825752-787a330a4e19f26fca4c429df511a559.png\")
<\/figure>\n\n\n\n<style>\n div {\n width: 200px; \n height: 200px; \n background-color:pink; \n }\n<\/style> \n<\/head> \n\n<body>\n<div><\/div>\n<script>\nconst div = document.querySelector('div')\ndiv.addEventlistener('mouseenter',function(){\nconsole.log(`\u8f7b\u8f7b\u7684\u6211\u6765\u4e86`)\n})\ndiv.addEventlistener('mouseleave',function(){\nconsole.log(`\u8f7b\u8f7b\u7684\u6211\u8d70\u4e86`)\n})\n\/\/\u5982\u679c\u9700\u8981\u5728\u9f20\u6807\u6307\u9488\u5728\u5143\u7d20\u5185\u90e8\u79fb\u52a8\u65f6\u89e6\u53d1\u4e8b\u4ef6\uff0c\u5219\u53ef\u4ee5\u4f7f\u7528 `mouseover`\u3002\n<\/script>\n<\/body> <\/code><\/pre>\n\n\n\nmouseenter\u4e0d\u5305\u542b\u5b50\u5143\u7d20\uff0c\u800cmouseover\u5305\u542b\u5b50\u5143\u7d20<\/p>\n\n\n\n
\u8f6e\u64ad\u56fe\u70b9\u51fb\u5207\u6362\u5b8c\u6574\u7248<\/h2>\n\n\n\n<!DOCTYPE html>\n<html lang=\"en\">\n \n<head>\n <meta charset=\"UTF-8\" \/>\n <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge\" \/>\n <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\" \/>\n <title>\u8f6e\u64ad\u56fe\u70b9\u51fb\u5207\u6362<\/title>\n <style>\n * {\n box-sizing: border-box;\n }\n \n .slider {\n width: 560px;\n height: 400px;\n overflow: hidden;\n }\n \n .slider-wrapper {\n width: 100%;\n height: 320px;\n }\n \n .slider-wrapper img {\n width: 100%;\n height: 100%;\n display: block;\n }\n \n .slider-footer {\n height: 80px;\n background-color: rgb(100, 67, 68);\n padding: 12px 12px 0 12px;\n position: relative;\n }\n \n .slider-footer .toggle {\n position: absolute;\n right: 0;\n top: 12px;\n display: flex;\n }\n \n .slider-footer .toggle button {\n margin-right: 12px;\n width: 28px;\n height: 28px;\n appearance: none;\n border: none;\n background: rgba(255, 255, 255, 0.1);\n color: #fff;\n border-radius: 4px;\n cursor: pointer;\n }\n \n .slider-footer .toggle button:hover {\n background: rgba(255, 255, 255, 0.2);\n }\n \n .slider-footer p {\n margin: 0;\n color: #fff;\n font-size: 18px;\n margin-bottom: 10px;\n }\n \n .slider-indicator {\n margin: 0;\n padding: 0;\n list-style: none;\n display: flex;\n align-items: center;\n }\n \n .slider-indicator li {\n width: 8px;\n height: 8px;\n margin: 4px;\n border-radius: 50%;\n background: #fff;\n opacity: 0.4;\n cursor: pointer;\n }\n \n .slider-indicator li.active {\n width: 12px;\n height: 12px;\n opacity: 1;\n }\n <\/style>\n<\/head>\n \n<body>\n <div class=\"slider\">\n <div class=\"slider-wrapper\">\n <img src=\".\/images\/slider01.jpg\" alt=\"\" \/>\n <\/div>\n <div class=\"slider-footer\">\n <p>\u5bf9\u4eba\u7c7b\u6765\u8bf4\u4f1a\u4e0d\u4f1a\u592a\u8d85\u524d\u4e86\uff1f<\/p>\n <ul class=\"slider-indicator\">\n <li class=\"active\"><\/li>\n <li><\/li>\n <li><\/li>\n <li><\/li>\n <li><\/li>\n <li><\/li>\n <li><\/li>\n <li><\/li>\n <\/ul>\n <div class=\"toggle\">\n <button class=\"prev\"><<\/button>\n <button class=\"next\">><\/button>\n <\/div>\n <\/div>\n <\/div>\n <script>\n \/\/ 1. \u521d\u59cb\u6570\u636e\n const data = [\n { url: '.\/images\/slider01.jpg', title: '\u5bf9\u4eba\u7c7b\u6765\u8bf4\u4f1a\u4e0d\u4f1a\u592a\u8d85\u524d\u4e86\uff1f', color: 'rgb(100, 67, 68)' },\n { url: '.\/images\/slider02.jpg', title: '\u5f00\u542f\u5251\u4e0e\u96ea\u7684\u9ed1\u6697\u4f20\u8bf4\uff01', color: 'rgb(43, 35, 26)' },\n { url: '.\/images\/slider03.jpg', title: '\u771f\u6b63\u7684jo\u53a8\u51fa\u73b0\u4e86\uff01', color: 'rgb(36, 31, 33)' },\n { url: '.\/images\/slider04.jpg', title: '\u674e\u7389\u521a\uff1a\u8ba9\u4e16\u754c\u901a\u8fc7B\u7ad9\u770b\u5230\u4e1c\u65b9\u5927\u56fd\u6587\u5316', color: 'rgb(139, 98, 66)' },\n { url: '.\/images\/slider05.jpg', title: '\u5feb\u6765\u5206\u4eab\u4f60\u7684\u5bd2\u5047\u65e5\u5e38\u5427~', color: 'rgb(67, 90, 92)' },\n { url: '.\/images\/slider06.jpg', title: '\u54d4\u54e9\u54d4\u54e9\u5c0f\u5e74YEAH', color: 'rgb(166, 131, 143)' },\n { url: '.\/images\/slider07.jpg', title: '\u4e00\u7ad9\u5f0f\u89e3\u51b3\u4f60\u7684\u7535\u8111\u914d\u7f6e\u95ee\u9898\uff01\uff01\uff01', color: 'rgb(53, 29, 25)' },\n { url: '.\/images\/slider08.jpg', title: '\u8c01\u4e0d\u60f3\u548c\u5c0f\u732b\u54aa\u8d34\u8d34\u5462\uff01', color: 'rgb(99, 72, 114)' },\n ]\n \/\/ \u83b7\u53d6\u5143\u7d20\n const img = document.querySelector('.slider-wrapper img')\n const p = document.querySelector('.slider-footer p')\n const footer = document.querySelector('.slider-footer')\n \/\/ 1. \u53f3\u6309\u94ae\u4e1a\u52a1\n \/\/ 1.1 \u83b7\u53d6\u53f3\u4fa7\u6309\u94ae \n const next = document.querySelector('.next')\n let i = 0 \/\/ \u4fe1\u53f7\u91cf \u63a7\u5236\u64ad\u653e\u56fe\u7247\u5f20\u6570\n \/\/ 1.2 \u6ce8\u518c\u70b9\u51fb\u4e8b\u4ef6\n next.addEventListener('click', function () {\n i++\n i = i >= data.length ? 0 : i\n \/\/ \u8c03\u7528\u51fd\u6570\n toggle()\n })\n \n \/\/ 2. \u5de6\u4fa7\u6309\u94ae\u4e1a\u52a1\n \/\/ 2.1 \u83b7\u53d6\u5de6\u4fa7\u6309\u94ae \n const prev = document.querySelector('.prev')\n \/\/ 2.2 \u6ce8\u518c\u70b9\u51fb\u4e8b\u4ef6\n prev.addEventListener('click', function () {\n i--\n i = i < 0 ? data.length - 1 : i\n \/\/ \u8c03\u7528\u51fd\u6570\n toggle()\n })\n \n \/\/ \u58f0\u660e\u4e00\u4e2a\u6e32\u67d3\u7684\u51fd\u6570\u4f5c\u4e3a\u590d\u7528\n function toggle() {\n \/\/ 1.4 \u6e32\u67d3\u5bf9\u5e94\u7684\u6570\u636e\n img.src = data[i].url\n p.innerHTML = data[i].title\n footer.style.backgroundColor = data[i].color\n \/\/ 1.5 \u66f4\u6362\u5c0f\u5706\u70b9 \u5148\u79fb\u9664\u539f\u6765\u7684\u7c7b\u540d\uff0c \u5f53\u524dli\u518d\u6dfb\u52a0 \u8fd9\u4e2a \u7c7b\u540d\n document.querySelector('.slider-indicator .active').classList.remove('active')\n document.querySelector(`.slider-indicator li:nth-child(${i + 1})`).classList.add('active')\n }\n \n \/\/ 3. \u81ea\u52a8\u64ad\u653e\u6a21\u5757\n let timerId = setInterval(function () {\n \/\/ \u5229\u7528js\u81ea\u52a8\u8c03\u7528\u70b9\u51fb\u4e8b\u4ef6 click() \u4e00\u5b9a\u52a0\u5c0f\u62ec\u53f7\u8c03\u7528\u51fd\u6570\n next.click()\n }, 1000)\n \n \/\/ 4. \u9f20\u6807\u7ecf\u8fc7\u5927\u76d2\u5b50\uff0c\u505c\u6b62\u5b9a\u65f6\u5668\n const slider = document.querySelector('.slider')\n \/\/ \u6ce8\u518c\u4e8b\u4ef6\n slider.addEventListener('mouseenter', function () {\n \/\/ \u505c\u6b62\u5b9a\u65f6\u5668\n clearInterval(timerId)\n })\n \n \/\/ 5. \u9f20\u6807\u79bb\u5f00\u5927\u76d2\u5b50\uff0c\u5f00\u542f\u5b9a\u65f6\u5668\n \/\/ \u6ce8\u518c\u4e8b\u4ef6\n slider.addEventListener('mouseleave', function () {\n \/\/ \u505c\u6b62\u5b9a\u65f6\u5668\n if (timerId) clearInterval(timerId)\n \/\/ \u5f00\u542f\u5b9a\u65f6\u5668\n timerId = setInterval(function () {\n \/\/ \u5229\u7528js\u81ea\u52a8\u8c03\u7528\u70b9\u51fb\u4e8b\u4ef6 click() \u4e00\u5b9a\u52a0\u5c0f\u62ec\u53f7\u8c03\u7528\u51fd\u6570\n next.click()\n }, 1000)\n })\n <\/script>\n<\/body>\n \n<\/html><\/code><\/pre>\n\n\n\n\u8fd9\u662f96\/97\u96c6\u7684\u5185\u5bb9<\/p>\n\n\n\n
\u7126\u70b9\u4e8b\u4ef6<\/h2>\n\n\n\n\u6682\u65f6\u65e0css\n<body>\n<div class=\"mi\">\n<input type=\"search\" placeholder=\"\u7c73\u7b14\u8bb0\u672c\">\n<ul class=\"result-list\">\n<li><a href=\"#\">\u5168\u90e8\u5546\u54c1<\/a><\/li)\n<li><a href=\"#\"> \u5c0f\u7c73 ll<a><\/li>\n<li><a href=\"#\">\u5c0f\u7c73 10S<\/a><\/li>\n<li><a href=\"#\">\u5c0f\u7c73\u7b14\u8bb0\u672c\u201c<\/a><\/li>\n<li><a href=\"#\">\u5c0f\u7c73\u624b\u673a(\/a><\/11.>\n<li><a href=\"#\">\u9ed1\u9ccc4<\/a><\/li>\n<li><a href=\"#\">\u7a7a\u8c03<\/a><\/li>\n<\/ul>\n<\/div>\n<script>\n\/\/1\uff0e\u83b7\u53d6\u5143\u7d20\nconst input = document.querySelector('[type=search]') const ul = document.querySelector('.result-list') \/\/ console.Log(input)\n11 2\uff0e\u76d1\u542c\u4e8b\u4ef6 \u83b7\u5f97\u7126\u70b9\ninput.addEventListener('focus', function\n} \/\/ul\u663e\u793a\nul.style.display= 'block' \/\/\u6dfb\u52a0\u4e00\u4e2a\u5e26\u6709\u989c\u8272\u8fb9\u6846\u7684\u7c7b\u540dinput.classList.add('search') })\n\/\/3\uff0e\u76d1\u542c\u4e8b\u4ef6 \u5931\u53bb\u7126\u70b9\ninput.addEventListener('blur',function\n() { ul.style.display = 'none'\ninput.classList.remove('search') })\n<\/script> <\/code><\/pre>\n\n\n\ndisplay\u4f1a\u6709\u4e2a\u95ee\u9898\u5427\uff0c\u4e0b\u62c9\u5217\u8868\u662f\u4e0d\u662f\u4f1a\u5f71\u54cd\u540e\u9762\u5143\u7d20\u7684\u5e03\u5c40\uff1f
\u662f\u4f1a\u6709\u95ee\u9898\uff0c\u5efa\u8bae\u8fd9\u4e2a\u5730\u65b9\u4f7f\u7528visibility:hidden
ul\u7ed9\u4e86\u7edd\u5bf9\u5b9a\u4f4d\u4e0d\u4f1a\u5f71\u54cd\u5e03\u5c40<\/p>\n\n\n\n
\u952e\u76d8\u4e8b\u4ef6\u548c\u7528\u6237\u8f93\u5165\u6587\u4ef6<\/h2>\n\n\n\n
\u8fc7\u6e21\u65b9\u6846\u52a8\u753b<\/p>\n\n\n\n
<head>\n<meta charset=\"UTF-8\">\n<meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge\">\n<meta name=\"viewport\" content=\"width=device-width, initial-scale=1. 0\">\n<title>Document<\/title> <style>\ninput{\nwidth:200px;\ntransition:all .3s;\n}\ninput:focus {\nwidth:300px; }\n<\/style> <\/head> \n\n<body>\n<input type=\"text\">\n<\/body><\/code><\/pre>\n\n\n\n\u8bc4\u8bba\u56de\u8f66\u53d1\u5e03<\/strong><\/p>\n\n\n\n<!DOCTYPE html>\n<html lang=\"en\">\n \n<head>\n <meta charset=\"UTF-8\">\n <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge\">\n <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\n <title>\u8bc4\u8bba\u56de\u8f66\u53d1\u5e03<\/title>\n <style>\n .wrapper {\n min-width: 400px;\n max-width: 800px;\n display: flex;\n justify-content: flex-end;\n }\n \n .avatar {\n width: 48px;\n height: 48px;\n border-radius: 50%;\n overflow: hidden;\n background: url(.\/images\/avatar.jpg) no-repeat center \/ cover;\n margin-right: 20px;\n }\n \n .wrapper textarea {\n outline: none;\n border-color: transparent;\n resize: none;\n background: #f5f5f5;\n border-radius: 4px;\n flex: 1;\n padding: 10px;\n transition: all 0.5s;\n height: 30px;\n }\n \n .wrapper textarea:focus {\n border-color: #e4e4e4;\n background: #fff;\n height: 50px;\n }\n \n .wrapper button {\n background: #00aeec;\n color: #fff;\n border: none;\n border-radius: 4px;\n margin-left: 10px;\n width: 70px;\n cursor: pointer;\n }\n \n .wrapper .total {\n margin-right: 80px;\n color: #999;\n margin-top: 5px;\n opacity: 0;\n transition: all 0.5s;\n }\n \n .list {\n min-width: 400px;\n max-width: 800px;\n display: flex;\n }\n \n .list .item {\n width: 100%;\n display: flex;\n }\n \n .list .item .info {\n flex: 1;\n border-bottom: 1px dashed #e4e4e4;\n padding-bottom: 10px;\n }\n \n .list .item p {\n margin: 0;\n }\n \n .list .item .name {\n color: #FB7299;\n font-size: 14px;\n font-weight: bold;\n }\n \n .list .item .text {\n color: #333;\n padding: 10px 0;\n }\n \n .list .item .time {\n color: #999;\n font-size: 12px;\n }\n <\/style>\n<\/head>\n \n<body>\n <div class=\"wrapper\">\n <i class=\"avatar\"><\/i>\n <textarea id=\"tx\" placeholder=\"\u53d1\u4e00\u6761\u53cb\u5584\u7684\u8bc4\u8bba\" rows=\"2\" maxlength=\"200\"><\/textarea>\n <button>\u53d1\u5e03<\/button>\n <\/div>\n <div class=\"wrapper\">\n <span class=\"total\">0\/200\u5b57<\/span>\n <\/div>\n <div class=\"list\">\n <div class=\"item\" style=\"display: none;\">\n <i class=\"avatar\"><\/i>\n <div class=\"info\">\n <p class=\"name\">\u4f60<\/p>\n <p class=\"text\">\u5927\u5bb6\u90fd\u8f9b\u82e6\u5566\uff0c\u611f\u8c22\u5404\u4f4d\u5927\u5927\u7684\u52aa\u529b\uff0c\u80fd\u5706\u6ee1\u5b8c\u6210\u771f\u662f\u592a\u597d\u4e86[\u7b11\u54ed][\u652f\u6301]<\/p>\n <p class=\"time\">2024-05-02 20:56:21<\/p>\n <\/div>\n <\/div>\n <\/div>\n <script>\n const tx = document.querySelector('#tx')\n const total = document.querySelector('.total')\n const item = document.querySelector('.item')\n const text = document.querySelector('.text')\n \/\/ 1. \u5f53\u6211\u4eec\u6587\u672c\u57df\u83b7\u5f97\u4e86\u7126\u70b9\uff0c\u5c31\u8ba9 total \u663e\u793a\u51fa\u6765\n tx.addEventListener('focus', function () {\n total.style.opacity = 1\n })\n \/\/ 2. \u5f53\u6211\u4eec\u6587\u672c\u57df\u5931\u53bb\u4e86\u7126\u70b9\uff0c\u5c31\u8ba9 total \u9690\u85cf\u51fa\u6765\n tx.addEventListener('blur', function () {\n total.style.opacity = 0\n })\n\/\/\u5982\u679c\u5173\u95ed\u4e86\u8868\u5355\uff0c\u8bf4\u663e\u793a0\/200\u7684\uff0c\u5efa\u8bae\u628a\u500d\u901f\u5173\u4e86\uff0c\u524d\u9762\u8bf4\u4e86opacity\u662f\u4e0d\u900f\u660e\u5ea6\uff0c\u53ea\u662f\u770b\u4e0d\u89c1\u53c8\u4e0d\u662f\u91cd\u7f6e\u6587\u672c\n \/\/ 3. \u68c0\u6d4b\u7528\u6237\u8f93\u5165\n tx.addEventListener('input', function () {\n \/\/ console.log(tx.value.length) \u5f97\u5230\u8f93\u5165\u7684\u957f\u5ea6\n total.innerHTML = `${tx.value.length}\/200\u5b57`\n })\n \n \/\/ 4. \u6309\u4e0b\u56de\u8f66\u53d1\u5e03\u8bc4\u8bba\n tx.addEventListener('keyup', function (e) {\n \/\/ \u53ea\u6709\u6309\u4e0b\u7684\u662f\u56de\u8f66\u952e\uff0c\u624d\u4f1a\u89e6\u53d1\n if (e.key === 'Enter') {\n \/\/ \u5982\u679c\u7528\u6237\u8f93\u5165\u7684\u4e0d\u4e3a\u7a7a\u5c31\u663e\u793a\u548c\u6253\u5370\n if (tx.value.trim()) {\n item.style.display = 'block'\n \/\/ console.log(tx.value) \/\/ \u7528\u6237\u8f93\u5165\u7684\u5185\u5bb9\n text.innerHTML = tx.value\n }\n \/\/ \u7b49\u6211\u4eec\u6309\u4e0b\u56de\u8f66\uff0c\u7ed3\u675f\uff0c\u6e05\u7a7a\u6587\u672c\u57df\n tx.value = ''\n \/\/ \u6309\u4e0b\u56de\u8f66\u4e4b\u540e\uff0c\u5c31\u8981\u628a \u5b57\u7b26\u7edf\u8ba1 \u590d\u539f\n total.innerHTML = '0\/200\u5b57'\n }\n \n })\n <\/script>\n<\/body>\n \n<\/html><\/code><\/pre>\n\n\n\n\u4e8b\u4ef6\u5bf9\u8c61<\/strong><\/h2>\n\n\n\n\u4e8b\u4ef6\u5bf9\u8c61\u662f\u4ec0\u4e48\uff1f<\/p>\n\n\n\n
\n- \u4e8b\u4ef6\u5bf9\u8c61\u4e5f\u662f\u4e2a\u5bf9\u8c61\uff0c\u8fd9\u4e2a\u5bf9\u8c61\u91cc\u6709\u4e8b\u4ef6\u89e6\u53d1\u65f6\u7684\u76f8\u5173\u4fe1\u606f \u3002<\/li>\n\n\n\n
- \u4f8b\u5982\uff1a\u9f20\u6807\u70b9\u51fb\u4e8b\u4ef6\u4e2d\uff0c\u4e8b\u4ef6\u5bf9\u8c61\u5c31\u5b58\u4e86\u9f20\u6807\u70b9\u5728\u54ea\u4e2a\u4f4d\u7f6e\u7b49\u4fe1\u606f\u3002<\/li>\n<\/ul>\n\n\n\n
\u4f7f\u7528\u573a\u666f\uff1a<\/p>\n\n\n\n
\n- \u53ef\u4ee5\u5224\u65ad\u7528\u6237\u6309\u4e0b\u54ea\u4e2a\u952e\uff0c\u6bd4\u5982\u6309\u4e0b\u56de\u8f66\u952e\u53ef\u4ee5\u53d1\u5e03\u65b0\u95fb<\/li>\n\n\n\n
- \u53ef\u4ee5\u5224\u65ad\u9f20\u6807\u70b9\u51fb\u4e86\u54ea\u4e2a\u5143\u7d20\uff0c\u4ece\u800c\u505a\u76f8\u5e94\u7684\u64cd\u4f5c<\/li>\n<\/ul>\n\n\n\n
\u5728\u4e8b\u4ef6\u7ed1\u5b9a\u7684\u56de\u8c03\u51fd\u6570\u7684\u7b2c\u4e00\u4e2a\u53c2\u6570\u5c31\u662f\u4e8b\u4ef6\u5bf9\u8c61 \uff0c\u4e00\u822c\u547d\u540d\u4e3aevent<\/p>\n\n\n\n
\u5143\u7d20.addEventListener('clink',function(event){\n}<\/code><\/pre>\n\n\n\n\u90e8\u5206\u5e38\u7528\u5c5e\u6027\uff1a<\/p>\n\n\n\n
\n- type\uff1a\u83b7\u53d6\u5f53\u524d\u7684\u4e8b\u4ef6\u7c7b\u578b<\/li>\n\n\n\n
- clientX\/clientY\uff1a\u83b7\u53d6\u5149\u6807\u76f8\u5bf9\u4e8e\u6d4f\u89c8\u5668\u53ef\u89c1\u7a97\u53e3\u5de6\u4e0a\u89d2\u7684\u4f4d\u7f6e<\/li>\n\n\n\n
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