let data = [ { companyId: "3d13ebe9cbc17427f4feac2bea8bb3b2", companyName: "中国石油华北石化分公司", companyNo: "2", refineries: [ { refineryId: "c32e5d49efe6be070a185b8eb2035963", refineryName: "炼油厂", refineryNo: "2-1", units: [ { unitId: "db17da36d7c479c97986b8c3eb5180e2", unitName: "160万吨/年重油催化装置", unitNo: "2-1-01-FCC" }, { unitId: "10ad58b3bba53db1317f5f1d113fd295", unitName: "340万吨/年渣油加氢处理装置", unitNo: "2-1-04-RFCC" } ] } ] } ] 将代码中所有包含Id的字段全部替换为id 将所有包含Name的字段全部替换为Name 将所有包含No的字段全部替换为No 将refineries和units替换为children

你可以使用以下代码来实现上述操作：

const data = [{
  companyId: "3d13ebe9cbc17427f4feac2bea8bb3b2",
  companyName: "中国石油华北石化分公司",
  companyNo: "2",
  refineries: [{
    refineryId: "c32e5d49efe6be070a185b8eb2035963",
    refineryName: "炼油厂",
    refineryNo: "2-1",
    units: [{
      unitId: "db17da36d7c479c97986b8c3eb5180e2",
      unitName: "160万吨/年重油催化装置",
      unitNo: "2-1-01-FCC"
    }, {
      unitId: "10ad58b3bba53db1317f5f1d113fd295",
      unitName: "340万吨/年渣油加氢处理装置",
      unitNo: "2-1-04-RFCC"
    }]
  }]
}];

const newData = data.map(item => {
  return {
    id: item.companyId,
    name: item.companyName,
    no: item.companyNo,
    children: item.refineries.map(refinery => {
      return {
        id: refinery.refineryId,
        name: refinery.refineryName,
        no: refinery.refineryNo,
        children: refinery.units.map(unit => {
          return {
            id: unit.unitId,
            name: unit.unitName,
            no: unit.unitNo
          };
        })
      };
    })
  };
});

console.log(newData);

这样就能将原来的数据结构中的所有`Id`、`Name`和`No`字段替换为小写的`id`、`name`和`no`，并将`refineries`和`units`替换为小写的`children`了。