前序

今天遇到了一个问题，在数组中push了很多数组，然后想给push进去的数组中对象赋值的时候，发现所有的值都变成了最后一个值，摸不着头脑，找不到原因为什么会这样，后来在同事的帮助先，终于解决了这个问题，现在赖记录一下过程以及解决方法。

 arry: [
        {
    
          group: "A组",
          hcgSchedules: [
            {
    
              medicalRecordNum: "bbbbb",
              dataTime: "09:00~09:30",
              femaleName: "张三aaaa",
              femalePhone: "18211234567",
              femaleAge: null,
              femaleInfertility: null,
              eggTime: "09:00:00",
              hcgTime: "09:20",
              triggerTime: 36,
              group: "0",
              note: null,
              lmp: null,
              cycleNumber: null,
              cycleType: null,
              positiveSign: 0,
            },
          ],
        },
        {
    
          group: "B组",
          hcgSchedules: [
            {
    
              medicalRecordNum: "bbbbb",
              dataTime: "09:00~09:30",
              femaleName: "张三bbb",
              femalePhone: "18211234567",
              femaleAge: null,
              femaleInfertility: null,
              eggTime: "09:00:00",
              hcgTime: "09:20",
              triggerTime: 36,
              group: "0",
              note: null,
              lmp: null,
              cycleNumber: null,
              cycleType: null,
              positiveSign: 0,
            },
          ],
        },
        {
    
          group: "C组",
          hcgSchedules: [
            {
    
              medicalRecordNum: "bbbbb",
              dataTime: "09:00~09:30",
              femaleName: "张三",
              femalePhone: "18211234567",
              femaleAge: null,
              femaleInfertility: null,
              eggTime: "09:00:00",
              hcgTime: "09:20",
              triggerTime: 36,
              group: "0",
              note: null,
              lmp: null,
              cycleNumber: null,
              cycleType: null,
              positiveSign: 0,
            },
          ],
        },
      ],

groupColumns = [
    {
      title: "",
      align: "center",
      children: [
        {
          title: "",
          children: [
            {
              title: "序号",
              width: 200,
              dataIndex: "key",
              key: "key",
            },
          ],
        },
        {
          title: "基本信息",
          children: [
            {
              title: "病历号",
              dataIndex: "medicalRecordNum",
              key: "medicalRecordNum",
              width: 200,
            },
            {
              title: "女方",
              dataIndex: "femaleName",
              key: "femaleName",
              width: 200,
              render: (text, record) => {
                return (
                  <span>
                    {text}
                    {record.femalePhone}
                  </span>
                )
              },
            },
            {
              title: "年龄",
              dataIndex: "femaleAge",
              key: "femaleAge",
              width: 200,
            },
          ],
        },
      ],
    },
  ]

handleColumns = () => {
    
    arry.forEach((item, index) => {
    
      arryColumn.push(groupColumns)
      当我这样写的时候，items[0].title的值永远为C组
      然后我就在这个位置加上了这行代码
       arryColumn = JSON.parse(JSON.stringify(arryColumn))
       这样就轻松解决了问题
      arryColumn.map((items, i) => {
    
        if (i === index) {
    
          items[0].title = item.group
        }
        console.log(item.sortedList)
        return arryColumn
      })
  }