vue点击按钮实现简单页面的切换

<!DOCTYPE html><html><head><meta charset="utf-8"><title></title><script src="js/vue.js" type="text/javascript" charset="utf-8"></script></head>&lt

丁七岁

4279人浏览 · 2020-09-05 11:55:21

丁七岁 · 2020-09-05 11:55:21 发布

<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<script src="js/vue.js" type="text/javascript" charset="utf-8"></script>
	</head>
	<body>
		<div id="app">
			<h3 v-show="tab==1">首页 </h3>
			<h3 v-show="tab==2">新闻页</h3>
			<h3 v-show="tab==3">个人页</h3>
			
			
			<button @click="tabChange" data-id="1">首页</button>
			<button @click="tabChange" data-id="2">新闻页</button>
			<button @click="tabChange" data-id="3">个人页</button>
		</div>
		<script type="text/javascript">
			let app = new Vue({
				el:"#app",
				data:{
					tab:1
				},
				methods:{
					tabChange:function(e){
						let tabid = e.target.dataset.id
						this.tab = tabid
					}
				}
			})
		</script> 
	</body>
</html>

写这个要记得下载vue.js

在这里插入图片描述

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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// /^