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| <!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Vue指令之v-on</title>
</head>
<body>
<div id="app">
<h3> 计数器 ： {{ counter }}</h3>
<button v-on:click="count(1)">增加+1</button>
<button @click="count(-1)">减少-1</button>
<button @click="count(null, $event)" id="initBtn">清零=0</button>
</div>
</body>
<script src="js/vue.js" type="text/javascript"></script>
<script type="text/javascript">
var vm = new Vue({
el: "#app",
data: {
counter: 0
},
methods: {
count: function(num, e) {
if (e && e.target.id == "initBtn") {
this.counter = 0
return
}
this.counter += num;
}
}
})
</script>
</html>
|
