Vue03 -- 简单指令与事件

<!DOCTYPE html>
<html>
<head>
    <title>Vue --- 指令与事件</title>
</head>
<body>
    <div id="app1">
        <a href="https://unpkg.com" v-if='show'>判断指令</a>
    </div>

    <div id="app2">
        <a v-bind:href='url'>属性绑定1</a>
        <img v-bind:src="imgs"></a>
    </div>

    <div id="app3">
        <p v-if='show'>文本内容</p>
        <button v-on:click='btn1'> 隐藏 </button>
        <button v-on:click="btn2"> 显示 </button>
        <button v-on:click="show=true"> 显示 </button>
    </div>

    <div id="app4">
        <p v-if='show'>文本内容</p>
    </div>

    <script type="text/javascript" src="https://unpkg.com/vue/dist/vue.min.js"></script>
    <script type="text/javascript">
        // v-if 用于判断
        var app1 = new Vue({
            el:'#app1',
            data:{
                show:false
            }
        })

        // v-bind 用于属性动态操作，如：id、class等
        var app2 = new Vue({
            el:'#app2',
            data:{
                url:'https://unpkg.com',
                imgs:'data:image/png;base64,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'
            }
        })

        // v-on 用于操作事件绑定
        var app3 = new Vue({
            el:'#app3',
            data:{
                show:true
            },
            methods:{
                btn1:function () {
                    this.show = false;
                },
                btn2:function () {
                    this.show = true;
                }
            }
            // 
            // methods:{
            //     btn1:function () {
            //         this.f1();
            //     },
            //     f1:function () {
            //         console.log("可嵌套函数")
            //         this.show = false;
            //     }
            // }
        })
            
        var app4 = new Vue({
            el:'#app4',
            data:{
                show:false
            },
            methods:{
                init:function (text) {
                    console.log(text)
                }
            },
            mounted:function () {
                this.init("初始化时")
            }
        })

        app4.init("外部调用")
    </script>
</body>
</html>
Vue03 -- 简单指令与事件

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