Hmmm, there is an error possibly like this:build/core/base_rules.mk:130: *** external/wpa_supplicant_8/wpa_supplicant: MODULE.TARGET.ETC.wpa_supplican...
分类:
移动开发 时间:
2014-09-03 19:47:17
阅读次数:
1721
添加附件 string file = "Files"; string path = Server.MapPath(file); if (!System.IO.Directory.Exists(path))//判断文件夹是否已经存在 { System.IO.Directory.CreateDire.....
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其他好文 时间:
2014-09-03 19:34:07
阅读次数:
239
ListView的addHeaderView和setAdapter的调用顺序,以及爆出java.lang.IllegalStateException: Cannot add header view to list -- setAdapter has already been called异常的原因。...
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其他好文 时间:
2014-09-03 11:17:56
阅读次数:
194
Mobile is no longer on the sidelines. If you’re not already thinking mobile first, you should at least consider it. Let’s go over compelling data that...
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Web程序 时间:
2014-09-03 10:50:56
阅读次数:
235
在git for windows里面不能commit修改,提示open shellopen shell以后,使用git add [filename],会报错:fatal: Unable to create './.git/index.lock': File exists. If no other g...
The problem is that the folder is already under version control. Here's how I fix this type of problem when it comes up: In your local shell, make a c...
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其他好文 时间:
2014-09-02 17:20:24
阅读次数:
179
This can be easily solved by allowing MARS in your connection string. AddMultipleActiveResultSets=trueto the provider part of your connection string (...
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其他好文 时间:
2014-09-02 12:16:14
阅读次数:
178
在应用程序的InitInstance方法中,添加如下几行代码:CreateMutex(NULL,true,m_pszAppName); if(GetLastError()==ERROR_ALREADY_EXISTS) { AfxMessageBox(_T("程序已启动"),MB_OK|MB_APPLMODAL|MB_ICONSTOP); returnfalse; }
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其他好文 时间:
2014-09-01 15:52:03
阅读次数:
164
问题描述
Example1: x = 123, return 321
Example2: x = -123, return -321
Have you thought about this?
Here are some good questions to ask before coding. Bonus points for you if you have already...
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其他好文 时间:
2014-09-01 15:38:13
阅读次数:
199
MySQL replace into 用法(insert into 的增强版)
在向表中插入数据的时候,经常遇到这样的情况:1. 首先判断数据是否存在; 2. 如果不存在,则插入;3.如果存在,则更新。
在 SQL Server 中可以这样处理:
if not exists (select 1 from t where id = 1)
insert into t(i...
分类:
数据库 时间:
2014-09-01 12:37:13
阅读次数:
287