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C/C++ 如何向上取整？ - C/C++ - 清泛网 - 专注C/C++及内核技术
...floor(x)返回的是小于或等于x的最大整数。
如： floor(10.5) == 10 floor(-10.5) == -11
使用ceil函数。ceil(x)返回的是大于x的最小整数。
如： ceil(10.5) == 11 ceil(-10.5) ==-10
floor()是向负无穷大舍入，floor(-10.5) == -11
ceil()是向正无穷...
Python: fastest way to create a list of n lists
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105
The probably only way which is marginally faster than
d = [[] for x in xrange(n)]
is
from...
Sort hash by key, return hash in Ruby
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10 Answers
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Selenium: FirefoxProfile exception Can't load the profile
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10 Answers
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How do you delete an ActiveRecord object?
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edited Feb 5 '19 at 10:29
Qortex
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answered ...
python location on mac osx
...e on the previous line. For example:
# Apple-supplied Python 2.6 in OS X 10.6
$ /usr/bin/python
Python 2.6.1 (r261:67515, Jun 24 2010, 21:47:49)
[GCC 4.2.1 (Apple Inc. build 5646)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>>
# python.org Python ...
Render basic HTML view?
...:58
nbro
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answered Dec 25 '10 at 18:41
Ivo WetzelIv...
select、poll、epoll之间的区别总结[整理] - C/C++ - 清泛网 - 专注C/C++及内核技术
...14/3258674.html
poll：http://www.cnblogs.com/Anker/archive/2013/08/15/3261006.html
epoll：http://www.cnblogs.com/Anker/archive/2013/08/17/3263780.html
今天对这三种IO多路复用进行对比，参考网上和书上面的资料，整理如下：
1、select实现
select的调用过程如...
How to exit a function in bash
...it.
– Yevgeniy Brikman
May 6 '16 at 10:53
1
@YevgeniyBrikman that's only true if the error in the...
Vim delete blank lines
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edited Jun 18 '10 at 8:27
answered Apr 1 '09 at 15:36
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