string sql = string.Format(@"insert into Table(FileSize,FileType,FilePath,FileExtName,OldFileName,NewFileName,FileHash,CreateTime,DeleteFlag) values(@FileSize,@FileType,@FilePath,@FileExtName,@OldFileName,@NewFileName,@FileHash,@CreateTime,@DeleteFlag);select @@IDENTITY");
select @@IDENTITY --用select @@identity得到上一次插入记录时自动产生的ID