lovecoding
/
W250913


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <div id="app">
        <ul>
            <li v-for="(item,key) in obj">
                {{key}}:{{item}}
            </li>
        </ul>
        <button @click="addFun">添加</button>
    </div>
    <script src="./js/vue.js"></script>
    <script>
        new Vue({
            el: '#app',
            data: {
                obj: {
                    name: "张三",
                    age: 18,
                    sex: "男"
                }
            },
            methods:{
                addFun(){
                    //  向obj中添加一个属性vue无法检测到
                    console.log("click");
                    // this.obj.name = "李四";
                    // 向obj中添加一个属性
                    // this.obj.school = "清华大学";
                    // 解决方法：使用vue提供的set方法
                    // Vue.set(要修改对象,属性名,属性值)
                    Vue.set(this.obj,"school","清华大学");
                }
            }
        })
    </script>
</body>

</html>