<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<title>Vue2-單一事件管理組件通信</title>
<script src="vue.js"></script>
<script type="text/javascript">
//准備一個空的實例對象
var Event = new Vue();
//組件A
var A = {
template: `
<div>
<span>我是A組件的數據->{{a}}</span>
<input type="button" value="把A數據傳給C" @click = "send">
</div>
`,
methods: {
send () {
Event.$emit("a-msg", this.a);
}
},
data () {
return {
a: "我是a組件中數據"
}
}
};
//組件B
var B = {
template: `
<div>
<span>我是B組件的數據->{{a}}</span>
<input type="button" value="把B數據傳給C" @click = "send">
</div>
`,
methods: {
send () {
Event.$emit("b-msg", this.a);
}
},
data () {
return {
a: "我是b組件中數據"
}
}
};
//組件C
var C = {
template: `
<div>
<h3>我是C組件</h3>
<span>接收過來A的數據為: {{a}}</span>
<br>
<span>接收過來B的數據為: {{b}}</span>
</div>
`,
mounted () {
//接收A組件的數據
Event.$on("a-msg", function (a) {
this.a = a;
}.bind(this));
//接收B組件的數據
Event.$on("b-msg", function (a) {
this.b = a;
}.bind(this));
},
data () {
return {
a: "",
b: ""
}
}
};
window.onload = function () {
new Vue({
el: "#box",
components: {
"dom-a": A,
"dom-b": B,
"dom-c": C
}
});
};
</script>
</head>
<body>
<div id="box">
<dom-a></dom-a>
<dom-b></dom-b>
<dom-c></dom-c>
</div>
</body>
</html>
