当new的时候，就创建了一个vue实例，这个实例就是vue框架的入口，也是VM层
<!DOCTYPE html>
<html lang="en"><head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<script src="./vue-2.5.16.js"></script>
</head><body>
<div id="app">
<input type="text" v-model="message">
<h2>{{message}}</h2>
</div>
<script>
var vm = new Vue({
el: "#app",
data: {
message: 'my words'
},
beforeCreate() {
console.group("beforeCreate");
console.log("%c%s", "color:red", "el : " + this.$el);
console.log("%c%s", "color:red", "data : " + this.$data);
console.log("%c%s", "color:red", "message: " + this.message)
},
created() {
console.group("created");
console.log("%c%s", "color:red", "el : " + this.$el);
console.log("%c%s", "color:red", "data : " + this.$data);
console.log("%c%s", "color:red", "message: " + this.message)
},
beforeMount() {
console.group("beforeMount");
console.log("%c%s", "color:red", "el : " + this.$el);
console.log("%c%s", "color:red", "data : " + this.$data);
console.log("%c%s", "color:red", "message: " + this.message)
},
mounted() {
console.group("mounted");
console.log("%c%s", "color:red", "el : " + this.$el);
console.log("%c%s", "color:red", "data : " + this.$data);
console.log("%c%s", "color:red", "message: " + this.message)
},
beforeUpdate() {
console.group("beforeUpdate");
console.log("%c%s", "color:red", "el : " + this.$el);
console.log("%c%s", "color:red", "data : " + this.$data);
console.log("%c%s", "color:red", "message: " + this.message)
},
updated() {
console.group("updated");
console.log("%c%s", "color:red", "el : " + this.$el);
console.log("%c%s", "color:red", "data : " + this.$data);
console.log("%c%s", "color:red", "message: " + this.message)
},
beforeDestroy() {
console.group("beforeDestroy");
console.log("%c%s", "color:red", "el : " + this.$el);
console.log("%c%s", "color:red", "data : " + this.$data);
console.log("%c%s", "color:red", "message: " + this.message)
},
destroyed() {
console.group("destroyed");
console.log("%c%s", "color:red", "el : " + this.$el);
console.log("%c%s", "color:red", "data : " + this.$data);
console.log("%c%s", "color:red", "message: " + this.message)
},
})
</script>
</body></html>
