for in 更换key值

        const arrayStr = [{code: '1', name: 'jack'}];
        let keyMap = {
          "code": "value",
          "name": "label"
        }
        for (let i = 0; i < arrayStr.length; i++) {
          const obj = arrayStr[i];
          for (const key in obj) {
            if (obj.hasOwnProperty(key)) {
              const newKey = keyMap[key];
              if (newKey) {
                obj[newKey] = obj[key];
                delete obj[key];
              }
            }
          }
        }