组件嵌套
a.定义全局变量,在页面中用到组件
ex:main.js中定义变量:
import Users from './components/Users';
Vue.component('Users',Users);//全局变量
app.vue 引用这个组件:
<users></users>
b.定义局部变量
app.vue定义局部变量, 引用这个组件
import Users from "./components/Users";
import Users from "./components/Users";
components: {Users},
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