数据结构类型转换（数组对象，提取表头）

//原数据
  let obj =  {
            "项目": "一、账面原值",
            "办公设备": null,
            "房屋及建筑物": null,
            "机器设备": null,
            "其他设备": null,
            "运输设备": null
        }
           
//期望得到的数据格式
 export const columnsDevGrid = [
    {
        dataField: "项目",
        caption: "项目",
        width: 200,
        alignment: "left",
        id:'1'
      },
    {
      dataField: "办公设备",
      caption: "办公设备",
      width: 200,
      alignment: "left",
    },
    {
      dataField: "房屋及建筑物",
      dataType: "string",
      caption: "房屋及建筑物",
      width: 200,
      alignment: "left",
    },
    {
      dataField: "机器设备",
      dataType: "string",
      caption: "机器设备",
      width: 80,
      alignment: "center",
    },
    {
      dataField: "其他设备",
      dataType: "string",
      caption: "其他设备",
      width: 170,
      alignment: "right",
    },

    {
      dataField: "运输设备",
      dataType: "string",
      caption: "运输设备",
      width: 170,
      alignment: "right",
    },
  ];

//转换方法
let obj = {
            "项目": "一、账面原值",
            "办公设备": null,
            "房屋及建筑物": null,
            "机器设备": null,
            "其他设备": null,
            "运输设备": null
        }；
    let arr=[]
    for(let i=0;i<Object.keys(obj).length;i++){
      //arr.push({name:Object.keys(obj)[i],value:obj[Object.keys(obj)[i]]})
      arr.push({dataField:Object.keys(baseData[0])[i],caption:Object.keys(baseData[0])[i]})
    }
    console.log(arr);