在数据库是没问题了,SELECT CAST(CAST(Yewuzhunquelv * 100 AS numeric(10, 2)) AS varchar(50)) + '%' AS Yewuzhunquelv FROM Tdefen 可以查询数据数据时69.00%。但在ASP.NET就搞不懂格式,这样string scd2 = "SELECT [Banzu], [Xingming],CAST(CAST(Yewuzhunquelv * 100 AS numeric(10, 2)) AS varchar(50)) + '%' AS Yewuzhunquelv from Tdefen。不是没咧都要这样,我只要其中一列Yewuzhunquelv 就行。格式怎样啊,搞半天了。