微信小程序bindtap事件与冒泡阻止详解

<text id='textId' data-userxxx='100' bindtap='tapMessage'>cilck here</text>

//index.jsPage({ data: {  mo: 'Hello World!!',  userid : '1234', },   // 定义函数 tapMessage: function(event) {  console.log(event.target.id);    // 可获得  console.log(event.target.name);   // 无法获得, 通过target只能直接获取id  console.log(event.target.dataset); // 要获得其它属性, 需要从dataset(数据集)中获取  console.log(event.target.dataset.userxxx); // userxxx为自定义的属性名, 但命名方式为:data-userxxx    // 这里还原使用userXxx  console.log(event.target.dataset.userXxx); }})

       <!-- data-userXxx,这个大写的X要改为-x --><text id='textId' data-user-xxx='100' bindtap='tapMessage'>cilck here</text>

<view bindtap='handout'>  outer  <view bindtap='handmiddle'>   middle   <view bindtap='handinner'>inner</view>  </view> </view>

handout: function () { console.log("out");},handmiddle: function () { console.log("middle");},handinner: function () { console.log("inner");}

 <view bindtap='handout'>  outer  <view catchtap='handmiddle'>   middle   <view bindtap='handinner'>inner</view>  </view> </view>