示例程序
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<script type="text/javascript" src="Vue-v2.5.22.js"></script>
<title>Title</title>
</head>
<body>
<div id="app">
<comp-a></comp-a>
<comp-b></comp-b>
</div>
<script type="text/javascript">
let bus = new Vue();
// 使用一個空組件，emit 觸發，on 監聽，off 取消監聽。
let vm = new Vue({
el: "#app",
components: {
compA: {
template: '<div>\
<input type="text" v-model="name">\
<button @click="create">添加</button>\
</div>',
data: function () {
return {
name: ""
}
},
methods: {
create: function () {
bus.$emit('create', {name: this.name});
this.name = '';
}
}
},
compB: {
template: "<ul>\
<li v-for='item in items'>{{item.name}}</li>\
</ul>",
data: function () {
return {
items: []
}
},
mounted() {
let that = this;
bus.$on('create', function (data) {
that.items.push(data);
})
}
},
}
})
</script>
</body>
</html>
