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iOS Programming UIStoryboard 故事板
iOS Programming UIStoryboard In this chapter, you will use a storyboard instead. Storyboards are a feature of iOS that allows you to instantiate and l...
分类:移动开发   时间:2015-05-29 13:52:02    阅读次数:197
mysql备份恢复
1.普通备份 mysql 改密码: mysql-nt??--skip-grant-tables use?mysql; UPDATE?user?SET?password=PASSWORD("123456")?WHERE?user=‘root‘; flush??privileges; --------------------------- #创建用户r...
分类:数据库   时间:2015-05-29 12:23:48    阅读次数:184
LeetCode Pascal's Triangle II
Given an index k, return the kth row of the Pascal's triangle. For example, given k = 3, Return [1,3,3,1]. Note: Could you optimize your algorithm to use only O(k) extra space? 题意:和上一题差别在于只能用...
分类:其他好文   时间:2015-05-29 12:07:02    阅读次数:124
xcrun: error: active developer path
xcrun: error: active developer path ("/Applications/Xcode.app/Contents/Developer/") does not exist, use `xcode-select --switch path/to/Xcode.app` to s...
分类:其他好文   时间:2015-05-29 11:44:23    阅读次数:137
To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details.
在VS2013中,使用提示中的_CRT_SECURE_NO_WARNINGS,以下是使用方法:         1.项目属性——>C/C++——>预处理器——>预处理器定义。         2. 点击后栏。         c. 输入:_CRT_SECURE_NO_WARNINGS(与前面的要用分号分开,后面加分号)...
分类:其他好文   时间:2015-05-29 10:05:48    阅读次数:152
性能调优:理解Set Statistics Time输出
在性能调优:理解Set Statistics IO输出我们讨论了Set Statistics IO,还有如何帮助我们进行性能调优。这篇文章会讨论下Set Statistics Time,它会告诉我们执行一个查询需要的时间。我们用一个例子来开始。 1 USE AdventureWorks2008r2 ...
分类:其他好文   时间:2015-05-29 09:44:23    阅读次数:96
StringBuffer and StringBuilder
As of release JDK 5, this class has been supplemented with an equivalent class designed for use by a single thread, StringBuilder. The StringBuilder c...
分类:其他好文   时间:2015-05-29 00:37:21    阅读次数:135
leetcode--Populating Next Right Pointers in Each Node II
Follow up for problem "Populating Next Right Pointers in Each Node". What if the given tree could be any binary tree? Would your previous solution still work? Note: You may only use constant ...
分类:其他好文   时间:2015-05-28 21:40:04    阅读次数:183
Clone Graph -- leetcode
Clone an undirected graph. Each node in the graph contains a label and a list of its neighbors. OJ's undirected graph serialization: Nodes are labeled uniquely. We use # as a separator for ea...
分类:其他好文   时间:2015-05-28 21:40:03    阅读次数:200
SQL Server 查看数据库在数据缓存(data cache)中占用的空间大小
1 use master 2 go 3 select * from sys.dm_os_buffer_descriptors 4 go 5 6 --查看数据库在数据缓存(data cache)中占用的空间大小 7 --由于每个数据页对应动态管理视图(dynamic management view.....
分类:数据库   时间:2015-05-28 19:48:13    阅读次数:281
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