admin_vue/03-v-bind动态属性绑定/练习4颜色的改变.html

59 lines
1.2 KiB
HTML

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
*{
margin: 0;
padding: 0;
}
.tip,div{
width: 200px;
line-height: 200px;
margin: 20px auto;
font-size: 40px;
font-weight: bolder;
text-align: center;
}
#app>div{
border: 1px solid #ff0;
}
.tip{
text-decoration: underline;
border:1px solid rgba(0, 23, 244, 0.5) !important;
}
</style>
</head>
<body>
<div id="app">
<div v-on:click="click_on()" :class="ChangeClasses">{{nums}}</div>
</div>
</body>
<script src="../JavaScript/vue.min.js"></script>
<script>
let vue=new Vue({
el:"#app",
data:{
nums:0,
isTip:false,
},
methods: {
click_on:function(){
let times=setInterval(()=>{
this.nums=Math.ceil(Math.random()*999+1);
if (this.nums%2==0&&this.nums%3==0&&this.nums%4==0){
this.isTip=!this.isTip
}
},2000)
},
ChangeClasses:function (){
return {tip:isTip}
}
},
})
</script>
</html>