<!DOCTYPE html><html><head> <title></title> <meta charset="utf-8"> <script src="http://unpkg.com/vue/dist/vue.js"></script></head><body><div id="box">{{a}} </div> <script type="text/javascript">var vm = new Vue({ el:"#box", data:{a:1, },});//vm就是实例对象console.log(vm.$el); //这里就是div元素vm.$el.style.background = "red";console.log(vm.$data); console.log(vm.$data.a); //"1"</script></body></html>
手动挂载
var vm = new Vue({ data:{a:1, },});//手动挂载vm.$mount("#box");或者下面的写法:
var vm = new Vue({data:{a:1,}, }).$mount("#box");
var vm = new Vue({aa:11, //自定义属性 data:{a:1, },}).$mount("#box"); console.log(vm.$options.aa); //11上面代码,自定义了属性aa,可以通过vm.$options获取。