摘要:
using System; using System.Collections.Generic; using System.IO; using System.Linq; using System.Text; using System.Text.RegularExpressions; using Sys 阅读全文
摘要:
1、select top 6 * from [jslm].[dbo].[Company_Info] WHERE c_ID NOT IN(SELECT TOP 4 c_ID FROM [jslm].[dbo].[Company_Info] order by c_ID) order by c_ID 2、select top 6 * from [jslm].[dbo].[Company_Info] where c_ID> (select max(c_ID) from (select top 4 c_ID from [jslm].[dbo].[Company_Info] order by c_I 阅读全文
摘要:
I think about 80% of the usefulness of OOP comes down to having abstract classes which (1) provide certain functionality to their inheriting classes, and (2) require certain functionality of their inheriting classes (the other 20% is mostly interfaces and contructors). This is one of the first code 阅读全文