1. let portalQuestionConfigDTOList = [
    2.     {
    3.         "title": '热门1',
    4.         "portalQuestionDetailConfigDTOList": [
    5.             {
    6.                 "customUrl": "www.aa.com",
    7.                 "showFlag": null,
    8.                 "showOrder": 0,
    9.                 "title": "电脑维修"
    10.             }
    11.         ]
    12.     },
    13.     {
    14.         "title": '其他',
    15.         "portalQuestionDetailConfigDTOList": [
    16.             {
    17.                 "customUrl": "www.aa.com",
    18.                 "showFlag": null,
    19.                 "showOrder": 0,
    20.                 "title": "电脑维修2"
    21.             }
    22.         ]
    23.     }
    24. ]
    26. let result = [];
    27. for (let i = 0; i < portalQuestionConfigDTOList.length; i++) {
    28.     let titleTag = portalQuestionConfigDTOList[i].title;
    29.     for (let j = 0; j < portalQuestionConfigDTOList[i].portalQuestionDetailConfigDTOList.length; j++) {
    30.         let resultOne = portalQuestionConfigDTOList[i].portalQuestionDetailConfigDTOList[j];
    31.         resultOne.titleTag = titleTag;
    32.         result.push(resultOne);
    33.     }
    34. }
    35. console.log('result', result);