08、Vue-通过事件向父组件发送消息
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>行找的皮卡丘</title>
</head>
<body>
<div id="app">
</div>
</body>
<script type="text/javascript" src="js/vue.min.js">
</script>
<script type="text/javascript">
Vue.component('Child', {
template: `
<div>
我是一个子组件
<input type='text' v-model='ChildData' v-on:input='changeValue(ChildData)'/>
</div>
`,
methods: {
changeValue(val) {
this.$emit('childHeader', val)
}
},
props: ['ChildData'],
})
Vue.component('Parent', {
data() {
return {
msg: "我是父组件数据"
}
},
template: `
<div>
我是一个父组件
<Child :ChildData='msg' @childHeader='childHeader'/>
</div>
`,
methods: {
childHeader(val) {
console.log(val);
}
}
})
new Vue({
el: "#app",
data() {
return {
}
},
template: `<parent/>`,
});
</script>
</html>