public static string GetFirst(string sql, SqlParam param)
 {
     return(bd.GetFirst(sql, param));
 }
 public static int SqlExecute(string sql, SqlParam param)
 {
     return(bd.SqlExecute(sql, param));
 }
 public static DataTable GetDt(string sql, SqlParam param)
 {
     return(bd.GetDt(sql, param));
 }