<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<script src="./js/vue.js"></script>
</head>
<body>
<div id="app">
<parent></parent>
</div>
<script>
//子组件
Vue.component('child',{
template:`
<div>
<input type="button" @click="sendData" value="点我发送信息到父组件">
</div>
`,
methods:{
sendData:function(){
this.$emit('myEvent','Hello World! I am Vue!');
}
}
})
//父组件
Vue.component('parent',{
template:`
<div>
<child @myEvent="getData"></child>
</div>
`,
methods:{
getData:function(msg){
console.log('收到从子组件的数据：'+msg);
this.msg = msg;
}
},
data:function(){
return {
msg:''
};
}
})
var vm = new Vue({
el:"#app"
})
</script>
</body>
</html>
