<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<div id="app">
<div>父组件</div>
<test-tom></test-tom>
<test-jerry></test-jerry>
</div>
<script type="text/javascript" src="./js/vue.js"></script>
<script>
//提供事件中心
var hub = new Vue();
Vue.component('test-tom', {
data: function() {
return {
num: 0
}
},
template: `<div>TOM:{{num}}
<div><button @click='handle'>点击</button></div></div>`,
methods: {
handle: function() {
//触发兄弟事件
hub.$emit('jerry-event', 1);
}
},
mounted: function() {
hub.$on('tom-event', (val) => {
this.num += val;
});
}
});
Vue.component('test-jerry', {
data: function() {
return {
num: 0
}
},
template: `<div>JERRY:{{num}}
<div><button @click='handle'>点击</button></div></div>`,
methods: {
handle: function() {
hub.$emit('tom-event', 2);
}
},
mounted: function() {
hub.$on('jerry-event', (val) => {
this.num += val;
});
}
})
var vm = new Vue({
el: '#app',
data: {
},
})
</script>
</body>
</html>
