{"id":47711,"date":"2025-07-30T09:02:01","date_gmt":"2025-07-30T01:02:01","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/47711.html"},"modified":"2025-07-30T09:02:01","modified_gmt":"2025-07-30T01:02:01","slug":"vue2-%e5%9f%ba%e7%a1%80%e5%ad%a6%e4%b9%a0-day03-%ef%bc%88%e6%a1%88%e4%be%8b%e3%80%81%e7%94%9f%e5%91%bd%e5%91%a8%e6%9c%9f%e3%80%81%e6%b3%a8%e5%86%8c%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/47711.html","title":{"rendered":"vue2 \u57fa\u7840\u5b66\u4e60 day03 \uff08\u6848\u4f8b\u3001\u751f\u547d\u5468\u671f\u3001\u6ce8\u518c\uff09"},"content":{"rendered":"<\/p>\n

\u4e00\u3001\u751f\u547d\u5468\u671f<\/h2>\n
  • \n

    \u751f\u547d\u5468\u671f\u4ecb\u7ecd<\/p>\n<\/li>\n

  • \n

    \u751f\u547d\u5468\u671f\u7684\u56db\u4e2a\u9636\u6bb5<\/p>\n<\/li>\n

  • \n

    \u751f\u547d\u5468\u671f\u94a9\u5b50<\/p>\n<\/li>\n

  • \n

    \u58f0\u660e\u5468\u671f\u6848\u4f8b<\/p>\n<\/li>\n

    1\u3001Vue\u751f\u547d\u5468\u671f：\u5c31\u662f\u4e00\u4e2aVue\u5b9e\u4f8b\u4ece\u521b\u5efa \u5230 \u9500\u6bc1 \u7684\u6574\u4e2a\u8fc7\u7a0b\u3002<\/h3>\n

    \u751f\u547d\u5468\u671f\u56db\u4e2a\u9636\u6bb5：\u2460 \u521b\u5efa \u2461 \u6302\u8f7d \u2462 \u66f4\u65b0 \u2463 \u9500\u6bc1<\/p>\n

    1.\u521b\u5efa\u9636\u6bb5：\u521b\u5efa\u54cd\u5e94\u5f0f\u6570\u636e<\/p>\n

    2.\u6302\u8f7d\u9636\u6bb5：\u6e32\u67d3\u6a21\u677f<\/p>\n

    3.\u66f4\u65b0\u9636\u6bb5：\u4fee\u6539\u6570\u636e，\u66f4\u65b0\u89c6\u56fe<\/p>\n

    4.\u9500\u6bc1\u9636\u6bb5：\u9500\u6bc1Vue\u5b9e\u4f8b<\/p>\n

    \"\"<\/p>\n

    2\u3001vue\u7684\u516b\u4e2a\u94a9\u5b50\u51fd\u6570<\/h3>\n

    \"\"1\u3001\u6848\u4f8b\u4ee3\u7801<\/h4>\n

    <!DOCTYPE html>
    \n<html lang="en">
    \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>
    \n<\/head>
    \n<body><\/p>\n

    <div id="app">
    \n <h3>{{ title }}<\/h3>
    \n <div>
    \n <button @click="count–">-<\/button>
    \n <span>{{ count }}<\/span>
    \n <button @click="count++">+<\/button>
    \n <\/div>
    \n <\/div>
    \n <script src="https:\/\/cdn.jsdelivr.net\/npm\/vue@2\/dist\/vue.js"><\/script>
    \n <script>
    \n const app = new Vue({
    \n el: '#app',
    \n data: {
    \n count: 100,
    \n title: '\u8ba1\u6570\u5668'
    \n },
    \n \/\/ 1. \u521b\u5efa\u9636\u6bb5（\u51c6\u5907\u6570\u636e）
    \n beforeCreate () {
    \n console.log('beforeCreate \u54cd\u5e94\u5f0f\u6570\u636e\u51c6\u5907\u597d\u4e4b\u524d', this.count)
    \n },
    \n created () {
    \n console.log('created \u54cd\u5e94\u5f0f\u6570\u636e\u51c6\u5907\u597d\u4e4b\u540e', this.count)
    \n \/\/ this.\u6570\u636e\u540d = \u8bf7\u6c42\u56de\u6765\u7684\u6570\u636e
    \n \/\/ \u53ef\u4ee5\u5f00\u59cb\u53d1\u9001\u521d\u59cb\u5316\u6e32\u67d3\u7684\u8bf7\u6c42\u4e86
    \n },<\/p>\n

    \/\/ 2. \u6302\u8f7d\u9636\u6bb5（\u6e32\u67d3\u6a21\u677f）
    \n beforeMount () {
    \n console.log('beforeMount \u6a21\u677f\u6e32\u67d3\u4e4b\u524d', document.querySelector('h3').innerHTML)
    \n },
    \n mounted () {
    \n console.log('mounted \u6a21\u677f\u6e32\u67d3\u4e4b\u540e', document.querySelector('h3').innerHTML)
    \n \/\/ \u53ef\u4ee5\u5f00\u59cb\u64cd\u4f5cdom\u4e86
    \n },<\/p>\n

    \/\/ 3. \u66f4\u65b0\u9636\u6bb5(\u4fee\u6539\u6570\u636e \u2192 \u66f4\u65b0\u89c6\u56fe)
    \n beforeUpdate () {
    \n console.log('beforeUpdate \u6570\u636e\u4fee\u6539\u4e86，\u89c6\u56fe\u8fd8\u6ca1\u66f4\u65b0', document.querySelector('span').innerHTML)
    \n },
    \n updated () {
    \n console.log('updated \u6570\u636e\u4fee\u6539\u4e86，\u89c6\u56fe\u5df2\u7ecf\u66f4\u65b0', document.querySelector('span').innerHTML)
    \n },<\/p>\n

    \/\/ 4. \u5378\u8f7d\u9636\u6bb5
    \n beforeDestroy () {
    \n console.log('beforeDestroy, \u5378\u8f7d\u524d')
    \n console.log('\u6e05\u9664\u6389\u4e00\u4e9bVue\u4ee5\u5916\u7684\u8d44\u6e90\u5360\u7528，\u5b9a\u65f6\u5668，\u5ef6\u65f6\u5668…')
    \n },
    \n destroyed () {
    \n console.log('destroyed，\u5378\u8f7d\u540e')
    \n }
    \n })
    \n <\/script>
    \n<\/body>
    \n<\/html><\/p>\n

    2\u3001mounted\u5e94\u7528-\u8f93\u5165\u6846\u83b7\u53d6\u7126\u70b9<\/h4>\n

    <!DOCTYPE html>
    \n<html lang="zh-CN"><\/p>\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>\u793a\u4f8b-\u83b7\u53d6\u7126\u70b9<\/title>
    \n <!– \u521d\u59cb\u5316\u6837\u5f0f –>
    \n <link rel="stylesheet" href="https:\/\/cdn.jsdelivr.net\/npm\/reset.css@2.0.2\/reset.min.css">
    \n <!– \u6838\u5fc3\u6837\u5f0f –>
    \n <style>
    \n html,
    \n body {
    \n height: 100%;
    \n }
    \n .search-container {
    \n position: absolute;
    \n top: 30%;
    \n left: 50%;
    \n transform: translate(-50%, -50%);
    \n text-align: center;
    \n }
    \n .search-container .search-box {
    \n display: flex;
    \n }
    \n .search-container img {
    \n margin-bottom: 30px;
    \n }
    \n .search-container .search-box input {
    \n width: 512px;
    \n height: 16px;
    \n padding: 12px 16px;
    \n font-size: 16px;
    \n margin: 0;
    \n vertical-align: top;
    \n outline: 0;
    \n box-shadow: none;
    \n border-radius: 10px 0 0 10px;
    \n border: 2px solid #c4c7ce;
    \n background: #fff;
    \n color: #222;
    \n overflow: hidden;
    \n box-sizing: content-box;
    \n -webkit-tap-highlight-color: transparent;
    \n }
    \n .search-container .search-box button {
    \n cursor: pointer;
    \n width: 112px;
    \n height: 44px;
    \n line-height: 41px;
    \n line-height: 42px;
    \n background-color: #ad2a27;
    \n border-radius: 0 10px 10px 0;
    \n font-size: 17px;
    \n box-shadow: none;
    \n font-weight: 400;
    \n border: 0;
    \n outline: 0;
    \n letter-spacing: normal;
    \n color: white;
    \n }
    \n body {
    \n background: no-repeat center \/cover;
    \n background-color: #edf0f5;
    \n }
    \n <\/style>
    \n<\/head><\/p>\n

    <body>
    \n<div class="container" id="app">
    \n <div class="search-container">
    \n <img src="https:\/\/www.itheima.com\/images\/logo.png" alt="">
    \n <div class="search-box">
    \n <input type="text" v-model="words" id="inp">
    \n <button>\u641c\u7d22\u4e00\u4e0b<\/button>
    \n <\/div>
    \n <\/div>
    \n<\/div><\/p>\n

    <script src="https:\/\/cdn.jsdelivr.net\/npm\/vue@2\/dist\/vue.js"><\/script>
    \n<script>
    \n const app = new Vue({
    \n el: '#app',
    \n data: {
    \n words: ''
    \n },
    \n \/\/ \u6838\u5fc3\u601d\u8def：
    \n \/\/ 1. \u7b49input\u6846\u6e32\u67d3\u51fa\u6765 mounted \u94a9\u5b50
    \n \/\/ 2. \u8ba9input\u6846\u83b7\u53d6\u7126\u70b9 inp.focus()
    \n mounted () {
    \n document.querySelector('#inp').focus()
    \n }
    \n })
    \n<\/script><\/p>\n

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

    <\/html><\/p>\n

    \u4e8c\u3001\u5de5\u7a0b\u5316\u5f00\u53d1\u548c\u811a\u624b\u67b6<\/h2>\n

    1\u3001\u76ee\u5f55\u4ecb\u7ecd<\/h3>\n

    \"\"<\/p>\n

    2\u3001\u8fd0\u884c\u6d41\u7a0b<\/h3>\n

    \"\"<\/p>\n

    3\u3001\u811a\u624b\u67b6Vue CLI<\/h3>\n

    \u57fa\u672c\u4ecb\u7ecd：<\/h5>\n

    Vue CLI \u662fVue\u5b98\u65b9\u63d0\u4f9b\u7684\u4e00\u4e2a\u5168\u5c40\u547d\u4ee4\u5de5\u5177<\/p>\n

    \u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u5feb\u901f\u521b\u5efa\u4e00\u4e2a\u5f00\u53d1Vue\u9879\u76ee\u7684\u6807\u51c6\u5316\u57fa\u7840\u67b6\u5b50\u3002\u3010\u96c6\u6210\u4e86webpack\u914d\u7f6e\u3011<\/p>\n

    \u4f7f\u7528\u6b65\u9aa4：<\/h5>\n
  • \n

    \u5168\u5c40\u5b89\u88c5（\u53ea\u9700\u5b89\u88c5\u4e00\u6b21\u5373\u53ef） yarn global add @vue\/cli \u6216\u8005 npm i @vue\/cli -g<\/p>\n<\/li>\n

  • \n

    \u67e5\u770bvue\/cli\u7248\u672c： vue –version<\/p>\n<\/li>\n

  • \n

    \u521b\u5efa\u9879\u76ee\u67b6\u5b50：vue create project-name(\u9879\u76ee\u540d\u4e0d\u80fd\u4f7f\u7528\u4e2d\u6587)<\/p>\n<\/li>\n

  • \n

    \u542f\u52a8\u9879\u76ee：yarn serve \u6216\u8005 npm run serve(\u547d\u4ee4\u4e0d\u56fa\u5b9a，\u627epackage.json)<\/p>\n<\/li>\n

    4\u3001\u7ec4\u4ef6\u662f\u7531\u4e09\u90e8\u5206\u6784\u6210<\/h3>\n
      \n
    • \n

      \u4e09\u90e8\u5206\u6784\u6210<\/p>\n

        \n
      • \n

        template：\u7ed3\u6784 （\u6709\u4e14\u53ea\u80fd\u4e00\u4e2a\u6839\u5143\u7d20）<\/p>\n<\/li>\n

      • \n

        script: js\u903b\u8f91<\/p>\n<\/li>\n

      • \n

        style： \u6837\u5f0f (\u53ef\u652f\u6301less，\u9700\u8981\u88c5\u5305)<\/p>\n<\/li>\n<\/ul>\n<\/li>\n

      • \n

        \u8ba9\u7ec4\u4ef6\u652f\u6301less<\/p>\n

        （1） style\u6807\u7b7e，lang="less" \u5f00\u542fless\u529f\u80fd<\/p>\n

        （2） \u88c5\u5305: yarn add less less-loader -D \u6216\u8005npm i less less-loader -D<\/p>\n<\/li>\n<\/ul>\n

        5\u3001\u666e\u901a\u7ec4\u4ef6\u7684\u6ce8\u518c\u4f7f\u7528-\u5c40\u90e8\u6ce8\u518c<\/h3>\n

        1.\u6b65\u9aa4：<\/h4>\n
      • \n

        \u521b\u5efa.vue\u6587\u4ef6（\u4e09\u4e2a\u7ec4\u6210\u90e8\u5206）<\/p>\n<\/li>\n

      • \n

        \u5728\u4f7f\u7528\u7684\u7ec4\u4ef6\u5185\u5148\u5bfc\u5165\u518d\u6ce8\u518c，\u6700\u540e\u4f7f\u7528<\/p>\n<\/li>\n

        2.\u4f7f\u7528\u65b9\u5f0f：<\/h4>\n

        \u5f53\u6210html\u6807\u7b7e\u4f7f\u7528\u5373\u53ef <\u7ec4\u4ef6\u540d><\/\u7ec4\u4ef6\u540d><\/p>\n

        3.\u6ce8\u610f：<\/h4>\n

        \u7ec4\u4ef6\u540d\u89c4\u8303 \u2014> \u5927\u9a7c\u5cf0\u547d\u540d\u6cd5， \u5982 HmHeader<\/p>\n

        \/\/ \u5bfc\u5165\u9700\u8981\u6ce8\u518c\u7684\u7ec4\u4ef6
        \nimport \u7ec4\u4ef6\u5bf9\u8c61 from '.vue\u6587\u4ef6\u8def\u5f84'
        \nimport HmHeader from '.\/components\/HmHeader'<\/p>\n

        export default {\u00a0 \/\/ \u5c40\u90e8\u6ce8\u518c
        \n\u00a0\u00a0components: {
        \n\u00a0\u00a0\u00a0'\u7ec4\u4ef6\u540d': \u7ec4\u4ef6\u5bf9\u8c61,
        \n\u00a0\u00a0\u00a0\u00a0HmHeader:HmHeaer,
        \n\u00a0 \u00a0 HmHeader
        \n\u00a0 }
        \n}<\/p>\n

        \"\"<\/h3>\n<\/p>\n

        6\u3001\u666e\u901a\u7ec4\u4ef6\u7684\u6ce8\u518c\u4f7f\u7528-\u5168\u5c40\u6ce8\u518c<\/h3>\n

        1.\u6b65\u9aa4<\/h4>\n
      • \n

        \u521b\u5efa.vue\u7ec4\u4ef6（\u4e09\u4e2a\u7ec4\u6210\u90e8\u5206）<\/p>\n<\/li>\n

      • \n

        main.js\u4e2d\u8fdb\u884c\u5168\u5c40\u6ce8\u518c<\/p>\n<\/li>\n

        2.\u4f7f\u7528\u65b9\u5f0f<\/h4>\n

        \u5f53\u6210HTML\u6807\u7b7e\u76f4\u63a5\u4f7f\u7528<\/p>\n

        <\u7ec4\u4ef6\u540d><\/\u7ec4\u4ef6\u540d><\/p>\n

        3.\u6ce8\u610f<\/h4>\n

        \u7ec4\u4ef6\u540d\u89c4\u8303 \u2014> \u5927\u9a7c\u5cf0\u547d\u540d\u6cd5， \u5982 HmHeader<\/p>\n

        4.\u8bed\u6cd5<\/h4>\n

        Vue.component('\u7ec4\u4ef6\u540d', \u7ec4\u4ef6\u5bf9\u8c61)<\/p>\n

        \u4f8b：<\/p>\n

        \/\/ \u5bfc\u5165\u9700\u8981\u5168\u5c40\u6ce8\u518c\u7684\u7ec4\u4ef6
        \nimport HmButton from '.\/components\/HmButton'
        \nVue.component('HmButton', HmButton)<\/p>\n

        \u00a0\u5728main.js\u6587\u4ef6\u91cc\u9762\u8fdb\u884c\u5168\u5c40\u6ce8\u518c<\/p>\n

        \"\"<\/h4>\n

        \u00a0\u5728\u67d0\u4e2a\u9875\u9762\u8fdb\u884c\u4f7f\u7528<\/p>\n

        \"\"<\/p>\n

        5.\u6848\u4f8b<\/h4>\n

        \"\"<\/p>\n

        \u4ee3\u7801<\/p>\n

        <template>
        \n <button class="hm-button">\u901a\u7528\u6309\u94ae<\/button>
        \n<\/template><\/p>\n

        <script>
        \nexport default {<\/p>\n

        }
        \n<\/script><\/p>\n

        <style>
        \n.hm-button {
        \n height: 50px;
        \n line-height: 50px;
        \n padding: 0 20px;
        \n background-color: #3bae56;
        \n border-radius: 5px;
        \n color: white;
        \n border: none;
        \n vertical-align: middle;
        \n cursor: pointer;
        \n}
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