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C#中as运算符
as运算符用于执行引用类型的显式类型转换。如果要转换的类型与指定的类型兼容,转换就会成功进行;如果类型不兼容,as运算符就会返回null值。如下面的代码所示,如果object引用实际上不引用string实例,把object引用转换为string就会返回null:object o1="Some Str...
分类:其他好文   时间:2014-06-06 20:23:41    阅读次数:307
MySQL 入门教程
(转自:http://www.cnblogs.com/mr-wid/archive/2013/05/09/3068229.html#c1)目录一、MySQL的相关概念介绍二、Windows下MySQL的配置配置步骤MySQL服务的启动、停止与卸载三、MySQL脚本的基本组成四、MySQL中的数据类型...
分类:数据库   时间:2014-06-06 13:06:31    阅读次数:263
[C语言练习]万年历加强版
/** * @copyright 2011 Chunhui Wang * * wangchunhui@wangchunhui.cn*/#includeint main(){ printf("\t\t\t万年历\n"); printf("\t\t\t\t------Made by Chunhui .....
分类:编程语言   时间:2014-06-06 11:36:31    阅读次数:218
HDU2717-Catch That Cow
Farmer John has been informed of the location of a fugitive cow and wants to catch her immediately. He starts at a point N (0 ≤ N ≤ 100,000) on a number line and the cow is at a point K (0 ≤ K ≤ 100,0...
分类:其他好文   时间:2014-06-03 05:30:23    阅读次数:394
POJ 1915 Knight Moves(BFS+STL)
Knight Moves Time Limit: 1000MS   Memory Limit: 30000K Total Submissions: 20913   Accepted: 9702 Description Background Mr Somuro...
分类:其他好文   时间:2014-06-03 04:02:09    阅读次数:260
Codeforces Round #250 (Div. 2)
感觉不会再爱了,呜呜!A题原来HACK这么多!很多人跟我一样掉坑了!If there is some choice whose description at least twice shorter than all other descriptions, or at least twice long...
分类:其他好文   时间:2014-06-02 06:33:26    阅读次数:238
毕业设计总结:(2)GP工具调用
感谢论坛博主@Mr|Right的文章以及他对我的帮助。在上一篇文章中已经完成了GP工具的发布,这篇文章中主要涉及到GP工具的调用。废话不多说,直接开始。系统开发的硬件配置:操作系统:Windows 8.1 专业版软件平台:ArcGIS 10.1(包括Server 10.1和Desktop 10.1)...
分类:其他好文   时间:2014-06-02 06:32:01    阅读次数:381
POJ2586——Y2K Accounting Bug
Y2K Accounting BugDescriptionAccounting for Computer Machinists (ACM) has sufferred from the Y2K bug and lost some vital data for preparing annual rep...
分类:其他好文   时间:2014-06-02 00:57:42    阅读次数:386
Fence Repair
Fence RepairTime Limit: 2000MSMemory Limit: 65536KTotal Submissions: 24393Accepted: 7812DescriptionFarmer John wants to repair a small length of the f...
分类:其他好文   时间:2014-06-01 12:20:10    阅读次数:210
HDU - 4813 Hard Code (长春赛区水题)
Description Some strange code is sent to Da Shan High School. It's said to be the prophet's note. The note is extremely hard to understand. However, Professor Meng is so smart that he successfully ...
分类:其他好文   时间:2014-06-01 09:18:38    阅读次数:246
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