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How to Be an Expert in a Changing World [Paul Graham]
1、参考:http://paulgraham.com/ecw.html2、有触动的话:When experts are wrong, it's often because they're experts on anearlier version of the world.The winds of c...
分类:其他好文   时间:2014-12-25 20:09:22    阅读次数:118
mysql 主从配置uuid相同错误解决
配置mysql主从时,由于是拷贝的mysql目录,导致主从mysql uuid相同, Slave_IO无法启动,报错信息如下: The slave I/O thread stops because master and slave have equal MySQL server UUIDs; these UUIDs must be different for replication to wor...
分类:数据库   时间:2014-12-25 16:33:18    阅读次数:193
【oracle】oracledba16 The redo log file should belong to an inactive group.
Because of hardware failure, you decided to drop a redo log memb er from the database.   Which condition should be met to drop a redo log file?   A. The redo log file should belong to an active gro...
分类:数据库   时间:2014-12-22 11:09:05    阅读次数:158
Hdu5145NPY and girls莫队算法
Problem DescriptionNPY's girlfriend blew him out!His honey doesn't love him any more!However, he has so many girlfriend candidates.Because there are t...
分类:编程语言   时间:2014-12-21 21:56:38    阅读次数:374
【oracle】oracledba13 clear the redo log group
A redo log file is corrupted while the database is open; as a con sequence, database operations are stopped because archiving cannot co ntinue. What would you do to solve the problem?   A. clear th...
分类:数据库   时间:2014-12-21 19:30:02    阅读次数:239
ZOJ3662:Math Magic(完全背包)
Yesterday, my teacher taught us about math: +, -, *, /, GCD, LCM... As you know, LCM (Least common multiple) of two positive numbers can be solved easily because of a * b = GCD (a, b) * LCM (a, b). ...
分类:其他好文   时间:2014-12-15 23:38:50    阅读次数:287
ZOJ3524:Crazy Shopping(拓扑排序+完全背包)
Because of the 90th anniversary of the Coherent & Cute Patchouli (C.C.P), Kawashiro Nitori decides to buy a lot of rare things to celebrate. Kawashiro Nitori is a very shy kappa (a type of wate...
分类:编程语言   时间:2014-12-15 23:38:12    阅读次数:285
iOS疯狂详解之warning:performSelector may cause a leak because its selector is unknown
主要是警告信息,在非ARC项目中没有这个警告。如果是在某一处修改只需要加入下列代码: #pragma clang diagnostic push #pragma clang diagnostic ignored "-Warc-performSelector-leaks" [self.ticketTarget performSelector: self.ticketAction w...
分类:移动开发   时间:2014-12-15 15:31:53    阅读次数:149
AOP在 .NET中的七种实现方法
AOP在 .NET中的七种实现方法Here are all the ways that I can think of to add AOPto your application. This mostly focus on the interception side of things,because...
分类:Web程序   时间:2014-12-15 10:22:24    阅读次数:198
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