code: def concat(lists):
      
  
      return lists[0].new(
          pd.concat([lists.data for lists in lists]).drop_duplicates()
      )
docs: 类似于pd.concat 用于合并一个list里面的多个DataStruct,会自动去重
  
  
  
      Arguments:
          lists {[type]} -- [DataStruct1,DataStruct2,....,DataStructN]
  
      Returns:
          [type] -- new DataStruct