微信小程序-bindtap事件子元素不传参

1. <ul id="tabBar">
2. <li class="{{currentTabBar_s == 10?'active':''}}" data-current="10" bindtap="swichTabN"><image src='../../images/icon/tab_MyTodo_s.png' class='img_s'></image><image src='../../images/icon/tab_MyTodo.png' class='img_n'></image><span>待办</span></li>
3. <li class="{{currentTabBar_s == 11?'active':''}}" data-current="11" bindtap="swichTabN"><image src='../../images/icon/tab_Customers.png' class='img_n'></image><image src='../../images/icon/tab_Customers.png' class='img_s'></image><span>客户</span></li>
4. <li class="{{currentTabBar_s == 12?'active':''}}" data-current="12" bindtap="swichTabN"><image src='../../images/icon/tab_Find.png' class='img_n'></image><image src='../../images/icon/tab_Find.png' class='img_s'></image><span>发现</span></li>
5. <li class="{{currentTabBar_s == 13?'active':''}}" data-current="13" bindtap="swichTabN"><image src='../../images/icon/tab_Achieve.png' class='img_n'></image><image src='../../images/icon/tab_Achieve.png' class='img_s'></image><span>业绩</span></li>
6. </ul>

1. // 点击标题切换当前页时改变样式
2. swichTabN: function (e) {
3. var _this=this;
4. 　　　var cur = e.target.dataset.current;
5.  
6. 　　//点击li的子级元素，不进行值改变，解决方法把取值方式 由e.target.dataset.current; 修改为e.currentTarget.dataset.current即可

var cur = e.currentTarget.dataset.current;  console.log(_this.data.currentTabBar_s)  console.log(_this.data)  if (this.data.currentTabBar_s == cur) { console.log(123);return false; }  else {  console.log(5687)  this.setData({  currentTabBar_s: cur  })  }  },