vue component :is实现多个组件之间的切换

<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"><title>Vue Component 标签</title>&l

qq_30758077

32458人浏览 · 2018-10-16 10:55:45

qq_30758077 · 2018-10-16 10:55:45 发布

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Vue Component 标签</title>
    <script type="text/javascript" src="../assets/js/vue.js"></script>
</head>
<body>
<h1>Vue Component 标签</h1>
<hr>
<div id="app">
   <component v-bind:is="who"></component>
    <button @click="changeComponent">我变换</button>
</div>
</body>
</html>
<script>
    var componentA={
        template:`<div style="color:red">我是 componentA</div>`
    }
    var componentB={
        template:`<div style="color:green">我是 componentB</div>`
    }
    var componentC={
        template:`<div style="color:rebeccapurple">我是 componentC</div>`
    }
    var app = new Vue({
        el:'#app',
        data:{
            who:'componentA'
        },
        components:{
            'componentA':componentA,
            'componentB':componentB,
            'componentC':componentC
        },
        methods:{
            changeComponent:function(){
                if(this.who=='componentA'){
                    this.who='componentB'
                }else if(this.who=='componentB'){
                    this.who='componentC'
                }else{
                    this.who='componentA'
                }
            }
        }
    })
</script>

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vue 表单验证

1、6位小写字母和数字必须包含两个字母rules: [{ required: true, message: "XXX不能为空", trigger: "blur" },{ max: 6, message: "最大长度为6位字符", trigger: "blur" },{pattern: /^(?=(?:[^a-z]*[a-z]){2})[a-z0-9]{6,6}$/, //不连续的两位字母// /^