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Objective-C 2.0 Mac和iOS开发实践指南 PDF扫描版 - 文档下载 - 清泛网 - ...
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第9章 常用Foundat.on类
第10章 Object.ve-C中的控制结构
第11.章 分类、扩展和安全
第12章 特性
第13章 协议
第三部分 高级概念
第1.4章 引用计数
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第四部分 附录
WinXP,Win7,Win8,Win1038M
Set markers for individual points on a line in Matplotlib
... to plot lines on a figure. Now I would now like to set the style, specifically the marker, for individual points on the line. How do I do this?
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Why do you have to call .items() when iterating over a dictionary in Python?
... Alex MartelliAlex Martelli
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Kill child process when parent process is killed
...plication dies, you are still left with child processes running. What we really want is for the child processes to die as soon as the main process dies.
The solution is to use "job objects" http://msdn.microsoft.com/en-us/library/ms682409(VS.85).aspx.
The idea is to create a "job object" for your ...
How do you sort a list in Jinja2?
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answered Mar 30 '11 at 17:55
Steve SSteve S
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Any reason not to use '+' to concatenate two strings?
... Tuple would be faster - the code was just an example :) Usually long multiple string inputs are dynamic.
– Mikko Ohtamaa
Apr 6 '12 at 12:52
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Python unittests in Jenkins?
....assertEqual(10, 7 + 3)
def test_fail(self):
self.assertEqual(11, 7 + 3)
JUnit with pytest
run the tests with:
py.test --junitxml results.xml tests.py
results.xml:
<?xml version="1.0" encoding="utf-8"?>
<testsuite errors="0" failures="1" name="pytest" skips="1" tests="2"...
Why can lambdas be better optimized by the compiler than plain functions?
...assing them to a function template will instantiate a new function specifically for that object. The compiler can thus trivially inline the lambda call.
For functions, on the other hand, the old caveat applies: a function pointer gets passed to the function template, and compilers traditionally hav...
Iterating Over Dictionary Key Values Corresponding to List in Python
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answered Sep 13 '11 at 22:22
Andrew ClarkAndrew Clark
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C Macro definition to determine big endian or little endian machine?
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Code supporting arbitrary byte orders, ready to be put into a file called order32.h:
#ifndef ORDER32_H
#define ORDER32_H
#include <limits.h>
#include <stdint.h>
#if CHAR_BIT != 8
#error "unsupported char size"
#endif
enum
{
O32_LITTLE_ENDIAN = 0x03020100ul,
O32_BIG_END...