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| <!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport"
content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
</head>
<body>
<div id="app">
<!--使用自定义组件钩子-->
<App></App>
</div>
<script src="https://mirrors.idiyrom.com/web/js/vue.mini.js"></script>
<script>
let vBtn = {
data() {
return {
}
},
props: ["id"],
template: `
<div>
<button @click="handlerClick">{{ id }}</button>
</div>
`,
methods: {
handlerClick() {
//每个组件中的this指的就是当前组件对象
this.id++;
// this.$emit("父组件声明自定义事件名", "传值");
this.$emit("clickHandler", this.id);
}
}
};
let vHeader = {
data() {
return {
msg_info: "我是vHeader子组件的数据"
}
},
//声明挂载父组件的数据
props: ["msg", "post"],
//子往父传值，父组件自定义事件 @clickHandler="clickHandler"
template: `
<div id="cc">
我是头部区域组件
<h2>{{ post.info }}</h2>
<h2>{{ post.id }} -- {{ post.title }}</h2>
<h2>{{ post.content }}</h2>
<vBtn :id="post.id" @clickHandler="clickHandler"></vBtn>
</div>`,
methods: {
clickHandler(val) {
this.post.id = val;
}
},
components: {
vBtn
}
};
//声明组件钩子
let App = {
data() {
return {
msg: "测试",
text: "我是父组件App的数据",
post: {
info: "再次测试",
id: 1,
title: "Vue从入门到精通",
content: "Vue基本语法，Vue基本使用，Vue基本应用"
}
}
},
//:msg="text" 向子组件传递自定义属性
//<vHeader :msg="text"></vHeader>
template: `
<div id="bb">
我是父组件的 {{ post.id }}
<vHeader :post="post"></vHeader>
我是一个局部组件钩子 {{ msg }}
</div>`,
methods: {
},
computed: {
},
created() {
},
components: {
vHeader
}
};
let vm = new Vue({
el: "#app",
//template优先级大于el
template: `<div id="aa"><App></App></div>`,
//将之前什么组件钩子挂载到Vue实例中
components: {
App: App
}
});
</script>
</body>
</html>
|