<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Vue监测数据改变原理_数组</title>
<script type="text/javascript" src="../vue.js"></script>
</head>
<body>
<div id="root">
<h2>学校名称：{{name}}</h2>
<h2>学校地址：{{address}}</h2>
<!-- <h2>校长：{{leader}}</h2>-->
<hr/>
<button @click="addSex">添加性别</button>
<h2>学生姓名：{{student.name}}</h2>
<h2>学生年龄：真实{{student.age.rAge}},对外{{student.age.sAge}}</h2>
<h2 v-if="student.sex">学生性别：{{student.sex}}</h2>
<!-- Vue.set(vm._data.student, 'sex', '男')-->
<!-- Vue.set(vm.student, 'sex', '男')-->
<!-- vm.$set(vm._data.student, 'sex', '男')-->
<h2>爱好</h2>
<ul>
<li v-for="(h, index) in student.hobby" :key="index">{{h}}</li>
</ul>
<h2>朋友</h2>
<ul>
<li v-for="(f,index) in student.friends" :key="index">
<h2>{{f.name}} - {{f.age}}</h2>
</li>
</ul>
</div>
</body>
<script type="text/javascript">
Vue.config.productionTip = false
const vm = new Vue({
el: '#root',
data: {
name: '哈哈',
address: '北京',
student: {
name: 'tom',
age: {
rAge: 40,
sAge: 29,
},
hobby: ['抽烟', '喝酒', '烫头'],
// push pop shift unshift splice sort reverse
// vm._data.student.hobby.push('学习')
// vm._data.student.hobby.shift('抽烟')
// vm._data.student.hobby.splice(0, 1, '打台球')
friends: [
{name: 'jerry', age: 35},
{name: 'tony', age: 28}
]
}
},
methods: {
addSex() {
Vue.set(this.student, "sex", "男")
// vm.$set(this.student, 'sex', '男')
}
}
})
</script>
</html>