<view class="row-wrap">     <view class="label">預(yù)約項目</view>     <picker bindchange="bindCasPickerChange" value="{{casIndex1}}" range="{{casArray}}">      <view>       <text>{{casArray[casIndex]}}</text>      </view>     </picker>    </view>   </view><view class="section {{reply?'on':'off'}}">    <input name="other" placeholder="請輸入所預(yù)約項目" type="text"/>  </view>

data: {  nickName: "",  avatarUrl: "",  casArray: ['雙眼皮', 'TBM', '隆胸', '減肥', '手動輸入'],  userName: '',  mobile: '',  Gender: 'female',  casIndex: 0, }, /** * 生命周期函數(shù)--監(jiān)聽頁面加載  */ bindCasPickerChange: function (e) {  console.log('喬丹選的是', this.data.casArray[e.detail.value])  if (e.detail.value == 4) {   this.setData({ reply: true })  } else {   this.setData({ reply: false })  }  this.setData({   casIndex: e.detail.value  }) },

.section{   font-size:28rpx;   margin-left: 50rpx;   margin-top: 30rpx;  }  .on{display: block}  .off{display: none}