Determine if a Sudoku is valid, according to:Sudoku Puzzles - The Rules.The Sudoku board could be partially filled, where empty cells are filled with ...
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其他好文 时间:
2014-07-08 23:12:45
阅读次数:
298
情景:在一台真机中运行项目。
提示:Could not change executable permissions on the application.
解决:真机中已经有一个同名的应用。bundle identifier 一样。删掉那个应用就可以了。
参考:http://stackoverflow.com/questions/12547706/could-not-change-execu...
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移动开发 时间:
2014-07-08 14:22:34
阅读次数:
289
1、The superclass “javax.servlet.http.httpservlet” is not found in the build path 原因:未添加server library 解决:在工程的build path-》library中添加server runtime li.....
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系统相关 时间:
2014-07-06 17:51:02
阅读次数:
208
openfire 安装报这个错误 A connection to the database could not be made. View the error message by opening the "\logs\error.log" log file, then go back to fix...
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数据库 时间:
2014-07-06 16:43:00
阅读次数:
284
Export aborted because fatal lint errors were found.These are listed in the Problems view.Either fix these before running Export again,or turn off "Ru...
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移动开发 时间:
2014-07-06 14:23:18
阅读次数:
363
在mysql中 FOUND_ROWS()与COUNT(*)都可以统计记录,如果都一样为什么会有两个这样的函数呢,下面我来介绍SELECT FOUND_ROWS()与COUNT(*)用法区别
SELECT语句中经常可能用LIMIT限制返回行数。有时候可能想要知道如果没有LIMIT会返回多少行,但又不想再执行一次相同语句。那么,在SELECT查询中包含SQL_CALC_FOUND_ROWS选...
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数据库 时间:
2014-07-06 12:04:05
阅读次数:
271
Description
The citizens of Bytetown, AB, could not stand that the candidates in the mayoral election campaign have been placing their electoral posters at all places at their whim. The city counci...
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其他好文 时间:
2014-07-06 10:53:28
阅读次数:
185
portlet 在部署之后,报异常 - Could not initialize class com.liferay.util.portlet.PortletProps。
先简述一下 portlet.properties,开发 portlet 过程中,可自己定义类似于 portal.properties 的配置文件 - portlet.properties。
步骤如下:
1. 在 c...
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其他好文 时间:
2014-07-06 10:26:19
阅读次数:
285
今天更新为163的源后,yum的时候报错:GPG key retrieval failed: [Errno 14] Could not open/read file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5.
解决方案:vi /etc/yum.repos.d/CentOS-Base.repo
把文件里所有的RPM-GPG-KEY-CentOS-5更改为R...
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其他好文 时间:
2014-07-06 08:39:27
阅读次数:
404
Description: Given two strings, write a method to decide if one is a permutation of the other.We could use the same idea from CTCI 1.1. The only diffe...
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其他好文 时间:
2014-07-05 21:43:01
阅读次数:
231