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57 lines
1.3 KiB
57 lines
1.3 KiB
3 years ago
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<title>Vue.set的使用</title>
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<script type="text/javascript" src="../vue.js"></script>
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</head>
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<body>
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<div id="root">
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<h2>学校名称：{{name}}</h2>
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<h2>学校地址：{{address}}</h2>
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<!-- <h2>校长：{{leader}}</h2>-->
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<hr/>
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<button @click="addSex">添加性别</button>
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<h2>学生姓名：{{student.name}}</h2>
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<h2>学生年龄：真实{{student.age.rAge}},对外{{student.age.sAge}}</h2>
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<h2 v-if="student.sex">学生性别：{{student.sex}}</h2>
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<!-- Vue.set(vm._data.student, 'sex', '男')-->
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<!-- Vue.set(vm.student, 'sex', '男')-->
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<!-- vm.$set(vm._data.student, 'sex', '男')-->
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<h2>朋友</h2>
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<ul>
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<li v-for="(f,index) in student.friends" :key="index">
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<h2>{{f.name}} - {{f.age}}</h2>
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</li>
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</ul>
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</div>
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</body>
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<script type="text/javascript">
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Vue.config.productionTip = false
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const vm = new Vue({
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el: '#root',
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data: {
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name: '哈哈',
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address: '北京',
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student: {
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name: 'tom',
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age: {
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rAge: 40,
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sAge: 29,
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},
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friends:[
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{name: 'jerry', age: 35},
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{name: 'tony', age: 28}
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]
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}
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},
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methods: {
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addSex() {
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Vue.set(this.student, "sex", "男")
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// vm.$set(this.student, 'sex', '男')
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}
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}
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})
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</script>
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</html>
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