云数据库有一条记录中有多条数据，现在要修改其中数据，但是我传过去是全部数据，部分有修改，其余没修改，如果全部数据update，会由于有部分数据没有更新导致update失败，（在全部数据都发生改变才能update成功），我想请问有什么解决方法，如果只更新要修改的数据，该如何修改？

<mp-toptips msg="{{error}}" type="error" show="{{error}}"></mp-toptips> <view class="page" xmlns:wx="http://www.w3.org/1999/xhtml"> <view class="page__hd"> <view class="page__title">Form</view> <view class="page__desc">表单输入</view> </view> <view class="page__bd"> <mp-form id="form" rules="{{rules}}" models="{{formData}}"> <mp-cells title="单选列表项"> <mp-checkbox-group prop="radio" multi="{{false}}" bindchange="radioChange"> <mp-checkbox wx:for="{{radioItems}}" wx:key="value" label="{{item.name}}" value="{{item.value}}" checked="{{item.checked}}"></mp-checkbox> </mp-checkbox-group> </mp-cells> <mp-cells title="复选列表项"> <mp-checkbox-group prop="checkbox" multi="{{true}}" bindchange="checkboxChange"> <mp-checkbox wx:for="{{checkboxItems}}" wx:key="value" label="{{item.name}}" value="{{item.value}}" checked="{{item.checked}}"></mp-checkbox> </mp-checkbox-group> </mp-cells> <mp-cells title="表单" footer="底部说明文字底部说明文字"> <mp-cell prop="qq" title="qq" ext-class=""> <input bindinput="formInputChange" data-field="qq" class="weui-input" placeholder="请输入qq"/> </mp-cell> <mp-cell prop="mobile" title="手机号" ext-class=" weui-cell_vcode"> <input bindinput="formInputChange" data-field="mobile" class="weui-input" placeholder="请输入手机号"/> <view slot="footer" class="weui-vcode-btn">获取验证码</view> </mp-cell> <mp-cell prop="date" title="日期" ext-class=""> <picker data-field="date" mode="date" value="{{date}}" start="2015-09-01" end="2017-09-01" bindchange="bindDateChange"> <view class="weui-input">{{date}}</view> </picker> </mp-cell> <mp-cell prop="vcode" title="验证码" ext-class=" weui-cell_vcode"> <input bindinput="formInputChange" data-field="vcode" class="weui-input" placeholder="请输入验证码"/> <image slot="footer" class="weui-vcode-img" src="../images/vcode.jpg" style="width: 108px"></image> </mp-cell> </mp-cells> <mp-cells title="提交后表单项报错"> <mp-cell show-error prop="idcard" title="卡号" ext-class=""> <input bindinput="formInputChange" data-field="idcard" class="weui-input" placeholder="请输入卡号"/> </mp-cell> </mp-cells> </mp-form> <view class="weui-cells__title">开关</view> <view class="weui-cells weui-cells_after-title"> <view class="weui-cell weui-cell_switch"> <view class="weui-cell__bd">标题文字</view> <view class="weui-cell__ft"> <switch checked /> </view> </view> </view> <view class="weui-cells__title">文本框</view> <view class="weui-cells weui-cells_after-title"> <view class="weui-cell"> <view class="weui-cell__bd"> <input class="weui-input" placeholder="请输入文本" /> </view> </view> </view> <view class="weui-cells__title">文本域</view> <view class="weui-cells weui-cells_after-title"> <view class="weui-cell"> <view class="weui-cell__bd"> <textarea class="weui-textarea" placeholder="请输入文本" style="height: 3.3em" /> <view class="weui-textarea-counter">0/200</view> </view> </view> </view> <view class="weui-cells__title">选择</view> <view class="weui-cells weui-cells_after-title"> <view class="weui-cell weui-cell_select"> <view class="weui-cell__hd" style="width: 105px"> <picker bindchange="bindCountryCodeChange" value="{{countryCodeIndex}}" range="{{countryCodes}}"> <view class="weui-select">{{countryCodes[countryCodeIndex]}}</view> </picker> </view> <view class="weui-cell__bd weui-cell__bd_in-select-before"> <input class="weui-input" placeholder="请输入号码" /> </view> </view> </view> <view class="weui-cells__title">选择</view> <view class="weui-cells weui-cells_after-title"> <view class="weui-cell weui-cell_select"> <view class="weui-cell__bd"> <picker bindchange="bindAccountChange" value="{{accountIndex}}" range="{{accounts}}"> <view class="weui-select">{{accounts[accountIndex]}}</view> </picker> </view> </view> <view class="weui-cell weui-cell_select"> <view class="weui-cell__hd weui-cell__hd_in-select-after"> <view class="weui-label">国家/地区</view> </view> <view class="weui-cell__bd"> <picker bindchange="bindCountryChange" value="{{countryIndex}}" range="{{countries}}"> <view class="weui-select weui-select_in-select-after">{{countries[countryIndex]}}</view> </picker> </view> </view> </view> <checkbox-group bindchange="bindAgreeChange"> <label class="weui-agree" for="weuiAgree"> <view class="weui-agree__text"> <checkbox class="weui-agree__checkbox" id="weuiAgree" value="agree" checked="{{isAgree}}" /> <view class="weui-agree__checkbox-icon"> <icon class="weui-agree__checkbox-icon-check" type="success_no_circle" size="9" wx:if="{{isAgree}}"></icon> </view> 阅读并同意<navigator url="" class="weui-agree__link">《相关条款》</navigator> </view> </label> </checkbox-group> <view class="weui-btn-area"> <button class="weui-btn" type="primary" bindtap="submitForm">确定</button> </view> </view> </view> https://developers.weixin.qq.com/miniprogram/dev/extended/weui/form.html

https://developers.[图片]weixin.qq.com/miniprogram/dev/framework/ability/custom-tabbar.html[图片] index3对应我的，但是显示选择的按钮是第二个