小程序选择器picker 绑定数组对象

<picker bindchange="bindPickerChange"

value="{{clientArray[index].uid}}"

 range="{{objectArray}}" range-key="category_name" data-category_id='{{objectArray[index].category_id}}'>
             <input class="input " value="{{objectArray[index].category_name}} "></input>
        </picker>

  bindPickerChange: function (e) {
    console.log(e)
    let category_id = e.currentTarget.dataset.category_id;
    console.log('picker发送选择改变，携带值为', e.detail.value)
    this.setData({
      category_id: category_id
    })
  },