- 当前 Bug 的表现（可附[图片] 截图） <!--index.wxml--> <view wx:if="{{devicenamearr.length>0}}"class='item' wx:for="{{devicenamearr}}"> <view  class='yangshi'> <view class="yangshi1">器材名称</view> <view class='yangshi2'>{{item.devicename}} </view> </view> <view class='yangshi'> <view class='yangshi1'>数量</view> . <view class='yangshi2'>{{item.shuliang}} </view> </view> </view> <view class="section"> <view class="section__title">器材名称</view> <picker bindchange="bindPickerChange" value="{{index}}" range="{{array}}"> <view class="picker"> 当前 ：{{devicename}} </view> </picker> </view> <view class='yangshi'> <view class='yangshi1'>数量</view> <input class='yangshi2' name="shuliang" placeholder="数量" type="number" bindinput="inputnum" id='{{i}}'auto-focus /> </view> <button class='button7' bindtap='tianjia'>+</button> Page({ data: { devicename: '1', shuliang: 1, devicenamearr: [], array:[1,2,3,4] }, tianjia(e) { var devicename = this.data.devicename var shuliang = this.data.shuliang var devicenamearr = this.data.devicenamearr if (shuliang.length > 0) { var o = {} o = { devicename: devicename, shuliang: shuliang } devicenamearr.push(o) } console.log('-------------' + devicenamearr[0]) this.setData({ devicenamearr: devicenamearr, }) }, // 点击下拉显示框 bindPickerChange: function (e) { var devicename = this.data.array[e.detail.value]; console.log(e) this.setData({ devicename: devicename }); console.log('devicename' + devicename) }, inputnum: function (e) { let shuliang = e.detail.value this.setData({ shuliang: shuliang }) } }) - 预期表现 - 复现路径 - 提供一个最简复现 Demo