微信小程序 实现动态显示和隐藏某个控件

<view>  <button bindtap="onChangeShowState">{{showView?'Click To Check IdleReason':'Click To Check MTStatus'}}</button> </view> <view class="{{showView?'bright789_view_show':'bright789_view_hide'}}">  <canvas canvas-id="pieCanvas1" style="width:400px;height:280px;"></canvas> </view> 

Page({  data: {   showView: true  },  onLoad: function (options) {   // 生命周期函数--监听页面加载   showView: (options.showView == "true" ? true : false)  }  , onChangeShowState: function () {   var that = this;   that.setData({    showView: (!that.data.showView)   })  }, }) 

.bright789_view_hide{  display: none; } .bright789_view_show{  display: block; }