<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>test</title>
<!-- ①导入包 -->
<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
</head>
<body>
<!-- ②用id定区域 -->
<div id="app">
<button @click="doit('小猪','大猪')" value="按钮">按钮</button>
</div> //形参调用单引号
<script>
// ③创建vue对象：el,data,methods区域 还可以放一些生命周期函数🌸
var area = new Vue({
el: "#app", //🌸元素挂载点element load；决定vue对象挂载到哪个元素上
data: {
message: "hello，Vue", //要给初始值呀，🌸字符串双引号啧啧啧
array: [],
// 数组调用时--{{array[0]}}
obj: {
name: "名字"
} //对象调用时--{{obj.name}}
},
methods: {
doit: function(p1, p2) { //可形参
alert(this.message + p1 + p2 + "请多多指教"); //🌸this关键字访问定义在data中的数据
}
}
})
</script>
</body>
</html>
