<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<script src="js/vue.js" type="text/javascript" charset="utf-8"></script>
<title></title>
</head>
<body>
<div id="app">
<button @click="show">開始</button>
<button @click="stop">停止</button>
<div>{{msg}}</div>
</div>
<script type="text/javascript">
new Vue({
el:"#app",
data:{
msg:"這是一段能夠跑動的文字!!!",
timer:null
},
methods:{
show:function(){
if(this.timer != null)
{return}
this.timer = setInterval(()=>{
let start = this.msg.substring(0,1)
let end = this.msg.substring(1)
this.msg = end + start
},300)
},
stop:function(){
clearInterval(this.timer)
this.timer = null
}
}
})
</script>
</body>
</html>