<!DOCTYPE html>
<html lang="en"> <head> <meta charset="UTF-8"> <title>componentChildToParentCommunication</title> <script src="js/vue.js"></script> </head> <template id="parentComp"> <div> I am parent component:{ {msg}},The Data from child:{ {msg1}},{ {msg2}} <hr> <child :m1="msg1" :m2="msg2"></child> </div> </template><template id="childComp">
<div>I am child component:{ {msg}}</div> </template> <body> <script> let child={ template:'#childComp', data(){ return { msg:'child Data' } }, props:['m1','m2'] }; let parent={ template:'#parentComp', data(){ return { mgs:'parent Data', msg1:'the first parent Data', msg2:'the second parent Data' } }, components:{ child }, }; window.οnlοad=function(){ new Vue({ el:'#app', components:{ parent } }); } /*子元素向父元素通信关键总结： 1：子元素定义时props:['msg1','msg2','msg3',...],用来放置从父元素拿过来的数据 2：在嵌套的子元素(使用时)上：<child :msg1="父数据1" :msg2="父数据2" :msg3="父数据3"></child>; */ </script> <div id="app"> <parent></parent> </div> </body></html>