<!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">
<input type="button" :value="startBtn" @click="startRoll" />
<input type="button" :value="endBtn" @click="endRoll" />
<p>{{content}}</p>
</div>
</body>
<script type="text/javascript">
var test = function(){
alert("hello")
}
var vm = new Vue({
el:‘#app‘,
data:{
startBtn:‘开始滚动‘,
endBtn:‘停止滚动‘,
content:‘中国加油，武汉人民加油，我们一定可以战胜疫情的！‘,
intervalId:null
},
methods:{
startRoll(){
if(this.intervalId != null){return}
this.intervalId = setInterval(function(){
console.log(vm)
var first = vm.content.substring(0,1)
var end = vm.content.substring(1,vm.content.length)
vm.content = end + first
console.log(vm.content)
},500)
},
endRoll(){
clearInterval(this.intervalId)
this.intervalId = null
}
}
})
</script>
</html>
效果：
原文地址：https://www.cnblogs.com/Mishell/p/12242389.html
时间： 2024-08-30 00:01:15