<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<script src="vue.js"></script>
<style>
span{
width:80px;
height:40px;
border-radius:30px;
display:inline-block;
text-align:center;
line-height:40px;
color: #fff;
background:#ed9a1b;
}
.count{
background:#ccc;
}
</style>
</head>
<body>
<div id="box">
<span v-show="show" @click="getCode">获取验证码</span>
<span v-show="!show" class="count">{{count}} s</span>
</div>
</body>
<script>
new Vue({
el:'#box',
data(){
return {
show: true,
count: '',
timer: null,
}
},
methods:{
getCode(){
const TIME_COUNT = 60;
if (!this.timer) {
this.count = TIME_COUNT;
this.show = false;
this.timer = setInterval(() => {
if (this.count > 0 && this.count <= TIME_COUNT) {
this.count--;
} else {
this.show = true;
clearInterval(this.timer);
this.timer = null;
}
}, 1000)
}
}
}
})
</script>
</html>
