1. 原生事件冒泡
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title></title> <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0"> <meta name="apple-mobile-web-app-capable" content="yes"> <meta name="apple-mobile-web-app-status-bar-style" content="black"> <style> </style> <script src="vue.js"></script> <script> window.onload=function(){ new Vue({ el:'#box', data:{ }, methods:{ show:function(ev){ alert(1); //ev.cancelBubble=true; }, show2:function(){ alert(2); } } }); }; </script> </head> <body> <div id="box"> <div @click="show2()"> <input type="button" value="按钮" @click="show($event)"> </div> </div> </body> </html>
事件冒泡：
从内向外扩散，点击input,会扩散到外层的div,一直向上扩散。点击完按钮，会依次执行事件show()和show2()
结果：
先弹出1，后弹出2
使用原生js取消冒泡：ev.cancelBubble=true;
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title></title> <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0"> <meta name="apple-mobile-web-app-capable" content="yes"> <meta name="apple-mobile-web-app-status-bar-style" content="black"> <style> </style> <script src="vue.js"></script> <script> window.onload=function(){ new Vue({ el:'#box', data:{ }, methods:{ show:function(ev){ alert(1); ev.cancelBubble=true; }, show2:function(){ alert(2); } } }); }; </script> </head> <body> <div id="box"> <div @click="show2()"> <input type="button" value="按钮" @click="show($event)"> </div> </div> </body> </html>
点完按钮后，只弹出1来。
2.Vue中事件冒泡
取消事件冒泡：使用 .stop来取消事件冒泡
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title></title> <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0"> <meta name="apple-mobile-web-app-capable" content="yes"> <meta name="apple-mobile-web-app-status-bar-style" content="black"> <style> </style> <script src="vue.js"></script> <script> window.onload=function(){ new Vue({ el:'#box', data:{ }, methods:{ show:function(){ alert(1); }, show2:function(){ alert(2); } } }); }; </script> </head> <body> <div id="box"> <div @click="show2()"> <input type="button" value="按钮" @click.stop="show()"> </div> </div> </body> </html>