/**
 * 
 * @param {*} array  分组的数租集合
 * @param {*} keyArry 分组字段集合
 * @param {*} resKey  分组里的数据自定义字段名称
 * @returns 
 */
//  多个字段分组
function dataGroupingToArray(array, keyArry, resKey = 'data') {
    if (keyArry.length <= 0) return array
    var aMap = []
    var aResult = []
    for (var i = 0; i < array.length; i++) {
      var item = array[i]
      var repetitionValue = ''
      var SJCS = ''
      var LJZH = ''
      keyArry.forEach((keyValue) => {
        if(keyValue == 'SJCS'){
          SJCS = item[keyValue];
        }
        if(keyValue == 'LJZH'){
          LJZH = item[keyValue];
        }
        repetitionValue += '' + item[keyValue];
      })
      if (aMap.indexOf(repetitionValue) === -1) {
        //没有重复
        var oItem = {}
        oItem[resKey] = [item]
        oItem['SJCS'] = SJCS;
        oItem['LJZH'] = LJZH;
        aResult.push(oItem)
        aMap.push(repetitionValue)
      } else {
        //重复了
        var index = aMap.indexOf(repetitionValue)
        aResult[index][resKey].push(item)
      }
    }
    return aResult
  }

//   使用方法
var newlist = dataGroupingToArray(array, ['LJZH', 'SJCS'])