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  | using System; 
 |  using System.Collections.Generic; 
 |  using System.Data; 
 |  using System.Linq; 
 |  using System.Text; 
 |  using System.Threading.Tasks; 
 |    
 |  namespace WebAPI.WebBLL.JCJM.GYZL 
 |  { 
 |      interface Gy_CustomerService 
 |      { 
 |          /// <summary> 
 |          /// 导入excel 
 |          /// </summary> 
 |          void ImportExcel(); 
 |    
 |          /// <summary> 
 |          /// 上传excel 
 |          /// </summary> 
 |          /// <returns></returns> 
 |          DataTable UploadExcel(DataSet ExcelDs); 
 |      } 
 |    
 |    
 |  } 
 |  
  |