{"id":77936,"date":"2026-02-25T19:17:59","date_gmt":"2026-02-25T11:17:59","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/77936.html"},"modified":"2026-02-25T19:17:59","modified_gmt":"2026-02-25T11:17:59","slug":"js-%e8%8a%82%e7%82%b9%e6%93%8d%e4%bd%9c","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/77936.html","title":{"rendered":"JS\u2014\u8282\u70b9\u64cd\u4f5c"},"content":{"rendered":"

\u76ee\u5f55<\/p>\n

1\u3001\u521b\u5efa\u6dfb\u52a0\u8282\u70b9<\/p>\n

\u521b\u5efa\u8282\u70b9：docment.createElement('\u8282\u70b9')<\/p>\n

\u521b\u5efa\u6587\u672c：document.createTextNode('\u6587\u672c')<\/p>\n

1\u3001father.appendChild(child)<\/p>\n

2\u3001father.insertBefore(child,\u6307\u5b9a\u5143\u7d20)<\/p>\n

2\u3001\u66ff\u6362\u5220\u9664\u8282\u70b9<\/p>\n

\u66ff\u6362\u8282\u70b9：replaceChild()<\/p>\n

\u5220\u9664\u8282\u70b9：<\/p>\n

3\u3001\u514b\u9686\u8282\u70b9<\/p>\n

4\u3001\u521b\u5efa\u8282\u70b9\u7684\u5176\u4ed6\u51e0\u79cd\u65b9\u5f0f<\/p>\n

element.innerHTML：<\/p>\n

element.innerText<\/p>\n

document.write()<\/p>\n

insertAdjacentHTML()<\/p>\n

5\u3001\u6e32\u67d3\u7ed3\u6784<\/p>\n

\n
1\u3001\u521b\u5efa\u6dfb\u52a0\u8282\u70b9<\/h5>\n
\u521b\u5efa\u8282\u70b9：docment.createElement('\u8282\u70b9')<\/h6>\n
\u521b\u5efa\u6587\u672c：document.createTextNode('\u6587\u672c')<\/h6>\n

\u6dfb\u52a0\u8282\u70b9：<\/p>\n

1\u3001father.appendChild(child)<\/h6>\n

\u5c06\u4e00\u4e2a\u8282\u70b9\u6dfb\u52a0\u5230\u6307\u5b9a\u7236\u8282\u70b9\u7684\u5b50\u8282\u70b9\u5217\u8868\u7684\u672b\u5c3e<\/p>\n

2\u3001father.insertBefore(child,\u6307\u5b9a\u5143\u7d20)<\/h6>\n

\u5c06\u4e00\u4e2a\u8282\u70b9\u6dfb\u52a0\u5230\u7236\u8282\u70b9\u7684\u6307\u5b9a\u5b50\u8282\u70b9\u524d\u9762<\/p>\n

<body>
\n <!–
\n \u9700\u6c421：\u5728\u6bb5\u843dp\u7684\u540e\u9762\u6dfb\u52a0\u4e00\u4e2aspan\u6807\u7b7e，\u6dfb\u52a0span\u7684\u6587\u672c\u5185\u5bb9\u2018\u6211\u662f\u4e00\u4e2aspan\u2019
\n \u9700\u6c422：\u5728\u6bb5\u843dp\u7684\u524d\u9762\u6dfb\u52a0\u4e00\u4e2ah1\u6807\u7b7e，\u6dfb\u52a0h1\u7684\u6587\u672c\u5185\u5bb9，\u2018\u6211\u662f\u4e00\u4e2ah1\u2019
\n –>
\n <div id="box">
\n <!– <h1>\u6211\u662f\u4e00\u4e2ah1<\/h1> –>
\n <p>\u6bb5\u843d<\/p>
\n <!– <span>\u6211\u662f\u4e00\u4e2aspan<\/span> –>
\n <\/div>
\n <button>\u6dfb\u52a0span<\/button>
\n <button>\u6dfb\u52a0h1<\/button>
\n <script>
\n let btn = document.querySelectorAll("button");
\n let p = document.querySelector("p");
\n let box = document.querySelector("#box");
\n \/\/ \u9700\u6c42\u4e00
\n btn[0].addEventListener("click", () => {
\n \/\/1\u3001 \u521b\u5efa\u8282\u70b9
\n const spanEle = document.createElement("span");
\n \/\/ 2\u3001\u521b\u5efa\u6587\u672c\u8282\u70b9
\n const text = document.createTextNode("\u6211\u662fspan");
\n \/\/ 3\u3001\u5c06\u6587\u672c\u8282\u70b9\u653e\u5230\u5143\u7d20\u8282\u70b9\u4e2d
\n spanEle.appendChild(text);
\n \/\/ 4\u3001\u5c06\u5143\u7d20\u8282\u70b9\u6dfb\u52a0\u5230\u6bb5\u843dp\u7684\u540e\u9762
\n box.appendChild(spanEle);
\n });
\n \/\/ \u9700\u6c42\u4e8c
\n btn[1].addEventListener("click", () => {
\n \/\/ \u91cd\u590d\u4e0a\u9762\u6b65\u9aa4
\n const h1Ele = document.createElement("h1");
\n const text = document.createTextNode("\u6211\u662fh1");
\n h1Ele.appendChild(text);
\n box.insertBefore(h1Ele, p);
\n });
\n <\/script><\/p>\n

<\/body> <\/p>\n

2\u3001\u66ff\u6362\u5220\u9664\u8282\u70b9<\/h5>\n
\u66ff\u6362\u8282\u70b9：replaceChild()<\/h6>\n

\u53ef\u4ee5\u4f7f\u7528\u6307\u5b9a\u7684\u5b50\u8282\u70b9\u66ff\u6362\u5df2\u6709\u7684\u5b50\u8282\u70b9<\/p>\n

\u8bed\u6cd5：\u7236\u8282\u70b9.replaceChild(\u65b0\u8282\u70b9，\u65e7\u8282\u70b9)<\/p>\n

\u5220\u9664\u8282\u70b9：<\/h6>\n

\u5199\u6cd5\u4e00\u3001father.removeChild(child)<\/p>\n

\u5199\u6cd5\u4e8c\u3001child.parentNode.removeChild(child)<\/p>\n

\u53ef\u4ee5\u5728DOM\u4e2d\u5220\u9664\u4e00\u4e2a\u5b50\u8282\u70b9，\u8fd4\u56de\u5220\u9664\u7684\u8282\u70b9<\/p>\n

<body>
\n <!– \u9700\u6c42\u4e00：\u70b9\u51fb\u6309\u94ae1，\u5c06\u300a\u91d1\u74f6\u6885\u300b\u66ff\u6362\u4e3a\u300a\u6c34\u6d52\u4f20\u300b
\n \u9700\u6c42\u4e8c：\u70b9\u51fb\u6309\u94ae2，\u5220\u9664\u300a\u91d1\u74f6\u6885\u300b
\n –>
\n <button>\u66ff\u6362<\/button>
\n <button>\u5220\u9664<\/button>
\n <ul>
\n <li>\u300a\u7ea2\u697c\u68a6\u300b<\/li>
\n <li>\u300a\u4e09\u56fd\u6f14\u4e49\u300b<\/li>
\n <li>\u300a\u897f\u6e38\u8bb0\u300b<\/li>
\n <li>\u300a\u91d1\u74f6\u6885\u300b<\/li>
\n <\/ul>
\n <script>
\n \/\/ \u9700\u6c42\u4e00
\n let btn = document.querySelectorAll("button");
\n let ulEle = document.querySelector("ul");
\n \/\/ let jpm = ulEle.children[3]; \/\/\u653e\u5728\u91cc\u9762\u4e0d\u7136\u4e00\u4f1a\u66ff\u6362\u4e86\u5c31\u627e\u4e0d\u5230\u8fd9\u4e2a\u5143\u7d20\u4e86
\n btn[0].addEventListener("click", () => {
\n let jpm = ulEle.children[3];
\n const liEle = document.createElement("li");
\n const text = document.createTextNode("\u6c34\u6d52\u4f20");
\n liEle.appendChild(text);
\n ulEle.replaceChild(liEle, jpm);
\n });
\n \/\/ \u9700\u6c42\u4e8c
\n btn[1].addEventListener("click", () => {
\n let jpm = ulEle.children[3];
\n \/\/ \u5220\u9664\u8282\u70b9，\u65b9\u5f0f\u4e00
\n \/\/ ulEle.removeChild(jpm);
\n \/\/ \u5220\u9664\u8282\u70b9，\u65b9\u5f0f\u4e8c,\u8fd9\u79cd\u65b9\u5f0f\u662f\u901a\u8fc7parentNode\u7531\u5b50\u5143\u7d20\u627e\u7236\u5143\u7d20，\u518d\u5220\u9664\u6307\u5b9a\u5b50\u5143\u7d20
\n jpm.parentNode.removeChild(jpm);
\n });<\/p>\n

<\/script>
\n<\/body> <\/p>\n

3\u3001\u514b\u9686\u8282\u70b9<\/h5>\n

node.cloneNode()<\/p>\n

\u8fd4\u56de\u8c03\u7528\u8be5\u65b9\u6cd5\u7684\u8282\u70b9\u7684\u4e00\u4e2a\u526f\u672c<\/p>\n

\u53c2\u6570：\u5e03\u5c14\u503c,\u9ed8\u8ba4\u662ffalse<\/p>\n

false \u53ea\u514b\u9686\u8282\u70b9\u672c\u8eab，\u4e0d\u514b\u9686\u91cc\u9762\u7684\u5b50\u8282\u70b9<\/p>\n

true \u62f7\u8d1d\u8282\u70b9，\u62f7\u8d1d\u5185\u5bb9<\/p>\n

<body>
\n <!– \u9700\u6c42:\u70b9\u51fb\u6309\u94ae\u514b\u9686div\u5143\u7d20–>
\n <div id="box">box\u76d2\u5b50<\/div>
\n <button>\u514b\u9686<\/button>
\n <script>
\n let but = document.querySelector("button");
\n let box = document.querySelector("#box");
\n but.addEventListener("click", () => {
\n const box1 = box.cloneNode(true);\/\/\u9ed8\u8ba4\u662ffalse，\u53ea\u514b\u9686\u672c\u8eab
\n \/\/ document.body.appendChild(box1);
\n document.body.insertBefore(box1, box);
\n });
\n <\/script><\/p>\n

<\/body> <\/p>\n

4\u3001\u521b\u5efa\u8282\u70b9\u7684\u5176\u4ed6\u51e0\u79cd\u65b9\u5f0f<\/h5>\n

\u5373\u4e00\u4e9b\u66f4\u7b80\u4fbf\u7684\u5199\u6cd5\u65b9\u5f0f<\/p>\n

element.innerHTML：<\/h6>\n

\u5141\u8bb8\u66f4\u6539html\u5143\u7d20\u7684\u5185\u5bb9,\u53ef\u4ee5\u8bbe\u7f6e\u6216\u8fd4\u56de\u8868\u683c\u884c\u7684\u5f00\u59cb\u548c\u7ed3\u675f\u6807\u7b7e\u4e4b\u95f4\u7684HTML，\u53ef\u4ee5\u89e3\u6790html\u6807\u7b7e<\/p>\n

element.innerText<\/h6>\n

\u83b7\u53d6\u6216\u8bbe\u7f6e\u5143\u7d20\u7684\u6587\u672c—-\u4ee5\u7eaf\u6587\u672c\u7684\u65b9\u5f0f\u76f4\u63a5\u663e\u793a，\u4e0d\u53ef\u4ee5\u89e3\u6790html\u6807\u7b7e<\/p>\n

document.write()<\/h6>\n

\u76f4\u63a5\u5c06\u5185\u5bb9\u5199\u5165\u9875\u9762\u7684\u5185\u5bb9\u6d41，\u4f46\u662f\u6587\u6863\u6267\u884c\u5b8c\u6bd5，\u5219\u4f1a\u5bfc\u81f4\u9875\u9762\u5168\u90e8\u91cd\u7ed8<\/p>\n

insertAdjacentHTML()<\/h6>\n

insertAdjacentHTML() \u662fElement\u7684API\u4e2d\u7684\u4e00\u4e2a\u65b9\u6cd5，\u53ef\u4ee5\u5c06\u5b57\u7b26\u4e32\u6587\u672c\u8f6c\u5316\u4e3a\u4f60\u60f3\u8981\u7684\u8282\u70b9（Node），\u5e76\u4e14\u63d2\u5165\u5230\u4f60\u60f3\u8981\u63d2\u5165\u7684\u4f4d\u7f6e\u4e2d\u3002\u800c\u4e14\u5b83\u5e76\u4e0d\u4f1a\u5411innerHTML\u4e00\u6837\u4f1a\u66ff\u6362\u6389\u5df2\u6709\u7684\u8282\u70b9，\u800c\u662f\u4f1a\u63d2\u5165\u5230\u6307\u5b9a\u4f4d\u7f6e\u3002<\/p>\n

\u8bed\u6cd5：element.insertAdjacentHTML(position,text)<\/p>\n

\u53c2\u6570position\u7684\u53ef\u9009\u503c：beforebegin\u3001afterbegin\u3001beforeend\u3001afterend，\u5bf9\u5e94\u4f4d\u7f6e\u5982\u4e0b\u56fe<\/p>\n

\"\"<\/p>\n

<body>
\n <!–
\n \u9700\u6c42:\u5728ul\u91cc\u6dfb\u52a0\u300a\u6c34\u6d52\u4f20\u300b\u5230\u9875\u9762\u4e2d
\n innerHTML\u3001document.write()
\n –>
\n <button>\u6dfb\u52a0<\/button>
\n <ul>
\n <li>\u300a\u7ea2\u697c\u68a6\u300b<\/li>
\n <!– <li>\u300a\u6c34\u6d52\u4f20\u300b<\/li> –>
\n <\/ul>
\n <script>
\n let ul = document.querySelector("ul");
\n let bot = document.querySelector("button");
\n bot.addEventListener("click", () => {
\n \/\/ \u5199\u6cd5\u4e00
\n const liEle = document.createElement("li");
\n const text = document.createTextNode("\u300a\u6c34\u6d52\u4f20\u300b");
\n liEle.appendChild(text);
\n ul.appendChild(liEle);<\/p>\n

\/\/ \u5199\u6cd5\u4e8c
\n const liEle = document.querySelector("li");
\n \/\/ liEle.innerText = "\u300a\u6c34\u6d52\u4f20\u300b";\/\/\u8fd9\u79cd\u5199\u6cd5\u76f8\u5f53\u4e8e\u91cd\u65b0\u8d4b\u503c，\u539f\u503c\u88ab\u8986\u76d6\u4e86
\n liEle.innerHTML = "\u300a\u6c34\u6d52\u4f20\u300b"\/\/\u8fd9\u4e2a\u4e5f\u662f\u7684
\n ul.appendChild(liEle)<\/p>\n

\/\/ \u5199\u6cd5\u4e09
\n \/\/ \u91cd\u7ed8，\u57fa\u4e8e\u5199\u6cd5\u4e8c，\u53ef\u4ee5\u5b9e\u73b0\u6548\u679c，\u4f46\u5f71\u54cd\u6548\u7387
\n ul.innerHTML = "<li>\u300a\u7ea2\u697c\u68a6\u300b<\/li><li>\u300a\u6c34\u6d52\u4f20\u300b<\/li>";
\n \/\/\u8fd8\u6709\u4e0b\u9762\u8fd9\u6837\u7684（\u4e0d\u5982\u4e0a\u9762\u7684）
\n \/\/ document.write(
\n \/\/ " <button>\u6dfb\u52a0<\/button><ul><li>\u300a\u7ea2\u697c\u68a6\u300b<\/li><li>\u300a\u6c34\u6d52\u4f20\u300b<\/li><\/ul>",
\n \/\/ );<\/p>\n

\/\/ \u5199\u6cd5\u56db father.insertAdjacentHTML(\u4f4d\u7f6e,\u8282\u70b9\u5b57\u7b26\u4e32)
\n let li = `<li>\u300a\u6c34\u6d52\u4f20\u300b<\/li>`;
\n ul.insertAdjacentHTML("beforeend", li);
\n });<\/p>\n

<\/script>
\n<\/body> <\/p>\n

5\u3001\u6e32\u67d3\u7ed3\u6784<\/h5>\n

\u4e00\u822c\u5b9a\u4e49\u7c7b\u6765\u5199<\/p>\n

<body>
\n <ul>
\n <!–
\n <li>\u9996\u9875<\/li>
\n <li>\u5206\u7c7b<\/li>
\n <li>\u53d1\u73b0<\/li>
\n <li>\u6211\u7684<\/li> –>
\n <\/ul>
\n <script><\/p>\n

class Footernav {
\n \/\/\u9759\u6001\u6570\u636e
\n ulele = document.querySelector("ul");
\n footernav = [
\n { iconClass: "iconfont icon-shouye", text: "\u9996\u9875", active: false },
\n { iconClass: "iconfont icon-fenlei", text: "\u5206\u7c7b", active: false },
\n { iconClass: "iconfont icon-find", text: "\u53d1\u73b0", active: false },
\n {iconClass: "iconfont icon-gouwuchekong",text: "\u8d2d\u7269\u8f66",active: false},
\n { iconClass: "iconfont icon-wode", text: "\u6211\u7684", active: true },
\n ];
\n constructor() { \/\/\u5e95\u5c42\u6784\u9020\u51fd\u6570,\u4e00\u65e6\u7c7b\u6267\u884c\u4e86,\u5c31\u4f1a\u7b2c\u4e00\u65f6\u95f4\u81ea\u5df1\u8c03\u7528
\n this.gender();
\n };
\n \/\/ \u6e32\u67d3\u51fd\u6570
\n gender() {
\n let str = "";
\n this.footernav.map((item) => {
\n str += `<li>${item.text}<\/li>`
\n });
\n this.ulele.innerHTML = str;
\n };
\n };
\n const f = new Footernav();<\/p>\n

<\/script>
\n<\/body><\/p>\n","protected":false},"excerpt":{"rendered":"

\u76ee\u5f55
\n1\u3001\u521b\u5efa\u6dfb\u52a0\u8282\u70b9
\n\u521b\u5efa\u8282\u70b9：docment.createElement(\u8282\u70b9)
\n\u521b\u5efa\u6587\u672c：document.createTextNode(\u6587\u672c)
\n1\u3001father.appendChild(child)
\n2\u3001father.insertBefore(child,\u6307\u5b9a\u5143\u7d20)
\n2\u3001\u66ff\u6362\u5220\u9664\u8282\u70b9
\n\u66ff\u6362\u8282\u70b9：replaceChild()
\n\u5220\u9664\u8282\u70b9：
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