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In MySQL, can I copy one row to insert into the same table?
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If it's null, it get automatically assigned the next AI number when it's inserted.
– Grim...
Dec 11 '13 at 11:08
3
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How can I reverse a NSArray in Objective-C?
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For obtaining a reversed copy of an array, look at danielpunkass' solution using reverseObjectEnumerator.
For reversing a mutable array, you can add the following category to your code:
@implementation NSMutableArray (Reverse)
- ...
Redefine tab as 4 spaces
...ated by pressing the tab key, which would result in the file literally containing (up to) 4 space characters for each "tab" you type?
Depending on your answer, one of the following sets of
settings should work for you:
For tab characters that appear 4-spaces-wide:
set tabstop=4
If you're using...
C++ Lock-free Hazard Pointer(冒险指针) - C/C++ - 清泛网 - 专注C/C++及内核技术
...的标记是计数数值一,对应的原子操作性能问题就成为它无法摆脱的原罪。而 Hazard Pointer 使用的标记更为轻巧,一般通过在链表中标记该对象的指针实现,回收时如果发现链表中有对应的指针就不进行内存回收,将标记的复杂...
What does %~dp0 mean, and how does it work?
... - expands %I to a file extension only
%~sI - expanded path contains short names only
%~aI - expands %I to file attributes of file
%~tI - expands %I to date/time of file
%~zI - expands %I to size of file
%~$PATH:I - searches the directories listed in the PATH
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Hidden features of Python [closed]
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Chaining comparison operators:
>>> x = 5
>>> 1 < x < 10
True
>>> 10 < x < 20
False
>>> x < 10 < x*10 < 100
True
>>> 10 > x <= 9
True
>>> 5 == x ...
创业测试:50个迹象表明你真该创业了 - 资讯 - 清泛网 - 专注C/C++及内核技术
...抑制的学习渴望。但是在年复一年的相同工作中,你可能无法有所收获。但是成为一名企业主,你可以拥有这种学习体验。
35.你不介意有多重任务需要处理。有些人可以同时解决几件事情。如果你是那种不会被多重任务压垮的...
Expanding tuples into arguments
...ted May 27 at 13:31
Nicolas Gervais
13.3k77 gold badges3434 silver badges5656 bronze badges
answered Jan 3 '10 at 2:24
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CruiseControl.Net 进行持续化集成 - IT产品资讯 - 清泛网 - 专注C/C++及内核技术
....2918,在首页的release栏中,便可以找到下载最新版CC.Net的连接,它是一款开源软件,你也可以在http://www.sf.net中找到它的源码和安装文件。如果你就是想使用CC.Net直接下载exe文件即可。下载后,在本地的安装过程如下:
双击Cru...
Can you control how an SVG's stroke-width is drawn?
...the inset and offset of a shape. It's not perfect (need to keep checking against latest browser versions) but it does accurately provide a shapes outer width for now.
– Steve
Sep 2 '11 at 10:02
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