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样例：

样式展示

数据库中原始第一条数据

 修改表格第一行的数量：

数据库结果 

 核心代码

wxml

①wx:for:执行循环将数组数据展示出来

②在某一单元格加上input样式

③在input中绑定：文本框改变事件，并且绑定data-index便于知道改变的具体是哪一行的数据

<!-- 表格 -->
<view class="table_position">
    <view class="table">
        <view class="table-tr">
            <view class="table-th1">顺序</view>
            <view class="table-th2">制程</view>
            <view class="table-th3">数量</view>
          </view>
        <view class="table-tr" wx:for="{{allinfo}}" wx:key="unique">
           <view class="table-td1">{{item.operation_seq_num}}</view>
           <view class="table-td2">{{item.operation_code}}</view>
           <view class="table-td3">
             <view class="input_position">
               <input type="text" value="{{item.begin_quantity}}" class="input" bindinput="inputChange" data-index="{{index}}"/>
             </view>
           </view>
        </view>
    </view>
</view>
<!--开始生产的按钮-->
<view class="start">
    <view class="button_text" bindtap="start_produce">开始生产</view>
</view>

wxss

/* 表格样式 */
.table_position{
  padding:15px;
}
.table {
  display: table;
  width: 100%;
  border-collapse: collapse;
  box-sizing: border-box;
}
.table-tr {
  display: table-row;
}
.table-th1 {
  width:10%;
  display: table-cell;
  font-weight: bold;
  border: 1rpx solid white;
  background-color:#51aad6;
  text-align: center;
  vertical-align: middle;
  padding: 5px 0;
  overflow: hidden;
  text-overflow: ellipsis;
  word-break: break-all;
}
.table-th2 {
  width:20%;
  display: table-cell;
  font-weight: bold;
  border: 1rpx solid white;
  background-color:#51aad6;
  text-align: center;
  vertical-align: middle;
  padding: 5px 0;
  overflow: hidden;
  text-overflow: ellipsis;
  word-break: break-all;
}
.table-th3 {
  width:15%;
  display: table-cell;
  font-weight: bold;
  border: 1rpx solid white;
  background-color:#51aad6;
  text-align: center;
  vertical-align: middle;
  padding: 5px 0;
  overflow: hidden;
  text-overflow: ellipsis;
  word-break: break-all;
}
.table-td1{
  width:10%;
  display: table-cell;
  text-align: center;
  vertical-align: middle;
  padding: 5px 0;
  overflow: hidden;
  text-overflow: ellipsis;
  word-break: break-all;
  border: 1rpx solid white;
  background-color:#aacee0;
}
.table-td2 {
  width:20%;
  display: table-cell;
  text-align: center;
  vertical-align: middle;
  padding: 5px 0;
  overflow: hidden;
  text-overflow: ellipsis;
  word-break: break-all;
  border: 1rpx solid white;
  background-color:#aacee0;
}
.table-td3 {
  width:15%;
  display: table-cell;
  text-align: center;
  vertical-align: middle;
  overflow: hidden;
  text-overflow: ellipsis;
  word-break: break-all;
  border: 1rpx solid white;
  background-color:#aacee0;
  /* padding: 5px 0; */
}
/* 输入框的样式 */
.input_position{
  display: flex;
  justify-content: center;
  align-items: center;
}
.input{
  background-color:rgb(255, 255, 255);
  width:70%;
  text-align:left;
}
/* 开始训练的按钮 */
.start{
  margin-top:10%;
  width:100%;
  display: flex;
  justify-content:center;
  align-items: center;
}
.button_text{
  background-color:rgb(245, 196, 196);
  width:90%;
  text-align:center;
  padding:2%;
}

js

①变更input，获取表格的全部数据

1° event.currentTarget.dataset.index：获取行信息

2° event.detail.value：获取输入的数据值

3° this.data.allinfo：获取原数组的信息

4° allinfo[index].begin_quantity = newValue;：找到修改的行的信息，将这一行对应的文本框的值修改为用户输入的值

// 输入框内容改变时，更新对应数据
  inputChange: function (event) {
    var index = event.currentTarget.dataset.index;
    var newValue = event.detail.value;
    var allinfo = this.data.allinfo;
    allinfo[index].begin_quantity = newValue;
    this.setData({
      allinfo: allinfo
    });
    console.log(this.data.allinfo)
  },

②点击开始按钮执行事件

1°提示确认图片展示

2°JSON.stringify(this.data.allinfo)：将数组转换为json格式便于后端处理

  //开始生产
  start_produce(){
    wx.showModal({
      title:'生产确认',
      content: '确认生产'+this.data.order_number+'?',
      success:res=>{
        //点击确认
        if(res.confirm){
          wx.request({
            url: app.globalData.position + 'Produce/start_produce',
            data: {
              order_number: this.data.order_number,
              username: app.globalData.username,
              allinfo:JSON.stringify(this.data.allinfo)
            },
            header: {
              "Content-Type": "application/x-www-form-urlencoded"
            },
            method: 'POST',
            dataType: 'json',
            success: res => {
              console.log(res.data)
              this.onLoad()
            },
            fail(res) {
              console.log("查询失败")
            }
          })
        }
        //点击取消
        else{
          console.log('用户点击了取消')
        }
      }
    })
  }

js完整代码

const app = getApp()
Page({
  //数据信息
  data: {},
  //刚进入页面执行的操作
  onLoad(options) {
    var pages = getCurrentPages()
    var currentPage = pages[pages.length - 1] //获取当前页面的对象
    var options = currentPage.options //如果要获取url中所带的参数可以查看options
    this.setData({
      order_number: options.order_number
    })
    //查询单号对应的信息
    wx.request({
      url: app.globalData.position + 'Produce/select_operation',
      data: {
        order_number: this.data.order_number,
        username: app.globalData.username
      },
      header: {
        "Content-Type": "application/x-www-form-urlencoded"
      },
      method: 'POST',
      dataType: 'json',
      success: res => {
        console.log(res.data)
        this.setData({
          allinfo: res.data.info,
          employee_name: res.data.employee_name
        })
      },
      fail(res) {
        console.log("查询失败")
      }
    })
    // console.log(options.order_number) 
  },
  // 输入框内容改变时，更新对应数据
  inputChange: function (event) {
    var index = event.currentTarget.dataset.index;
    var newValue = event.detail.value;
    var allinfo = this.data.allinfo;
    allinfo[index].begin_quantity = newValue;
    this.setData({
      allinfo: allinfo
    });
    console.log(this.data.allinfo)
  },
  //开始生产
  start_produce(){
    wx.showModal({
      title:'生产确认',
      content: '确认生产'+this.data.order_number+'?',
      success:res=>{
        //点击确认
        if(res.confirm){
          wx.request({
            url: app.globalData.position + 'Produce/start_produce',
            data: {
              order_number: this.data.order_number,
              username: app.globalData.username,
              allinfo:JSON.stringify(this.data.allinfo)
            },
            header: {
              "Content-Type": "application/x-www-form-urlencoded"
            },
            method: 'POST',
            dataType: 'json',
            success: res => {
              console.log(res.data)
              this.onLoad()
            },
            fail(res) {
              console.log("查询失败")
            }
          })
        }
        //点击取消
        else{
          console.log('用户点击了取消')
        }
      }
    })
  }
})

PHP

①json_decode($_POST['allinfo'], true);将前端传来的json格式的数组解析为普通数组

②对数组进行循环

③获取数组中每项对应的id

④根据id，去修改数据库中的单项值

 public function start_produce(){
      $wip_entity_name = input('post.order_number');
      $username = input('post.username');
      $allinfo = json_decode($_POST['allinfo'], true);
      for($i = 0 ; $i<count($allinfo); $i++){
        //获取数组中的每行的id
        $id = $allinfo[$i]['wip_operation_id'];
        // 更改数据库中每站开始数量的值
        db::table('wip_operation_plan')
        ->where(
          [
            'wip_operation_id'=>$id
          ]
        )
        ->update(
          [
            'begin_quantity'=>$allinfo[$i]['begin_quantity']
          ]
        );
       
      }
      $data['info'] = db::table('wip_operation_plan')->where(['wip_entity_name'=>$wip_entity_name])->select();
      echo json_encode($data);
    }