<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Vue 示例</title>
</head>
<body>
<div id="app">
{{ data }}
</div>
<script src="https://unpkg.com/vue/dist/vue.min.js"></script>
<script>
var app = new Vue({
el: '#app',
data: {
data: new Date()
},
mounted: function() {
var _this = this;
this.timer = setInterval(function() {
_this.date = new Date()
},1000);
},
beforeDestroy: function() {
if (this.timer) {
clearnInterval(this.timer);
}
}
})
</script>
</body>
</html>