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泡在Stack Overflow答题30天 - 创意 - 清泛网 - 专注C/C++及内核技术
...）：写一个评论告诉用户他的所作所为是不对的以及应该怎么做。当时我就建议他去Google一下这个新问题，如果找不到想要的答案再来Stack Overflow上问一个新的问题，而不是在一个用户的答案下不停的问一些毫无关联的问题。
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Android disable screen timeout while app is running
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For the ones who don't have time to read linked pdf: "Wakelocks are costly if forgotten", "Consider using android:keepScreenOn to ensure correctness".
– lenrok258
Feb 7 '16 at 15:11
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A good book for learning D3.js [closed]
...ing from a different medium) and perhaps un-humbly D3 Tips and Tricks as a pdf, epub or mobi or even fully on-line leanpub.com/D3-Tips-and-Tricks/read :-)
– d3noob
Jun 5 '13 at 4:49
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The Use of Multiple JFrames: Good or Bad Practice? [closed]
...ere opening a viewer, using the 'Save As' facility to save the report as a PDF to a specific directory, using Acrobat Reader to open the PDF file, and then they would do the same with the next report. They would have multiple Acrobat Readers running with the various report outputs that they wanted t...
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
...和poll的改进，就应该能避免上述的三个缺点。那epoll都是怎么解决的呢？在此之前，我们先看一下epoll和select和poll的调用接口上的不同，select和poll都只提供了一个函数——select或者poll函数。而epoll提供了三个函数，epoll_create,epol...
Text size and different android screen sizes
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@forcelain I think you need to check this Google IO Pdf for Design. In that pdf go to Page No:77 in which you will find how there suggesting for using dimens.xml for different devices of android for Example see Below structure :
res/values/dimens.xml
res/values-small/dimens....
Approximate cost to access various caches and main memory?
...t deep explanation about memory hardware and software interaction.
Full PDF (114 pages)
Comments on LWN about PDF version
Another ones
Seven posts on LWN + Comments
Part 1 - Introduction
Part 2 - Cache
Part 3 - Virtual Memory
Part 4 - NUMA support
Part 5 - What programmers can do
Part 6 - Mo...
远程临场机器人 你会买单吗？ - 资讯 - 清泛网 - 专注C/C++及内核技术
...太新了，你去山寨一个苹果表，很多人都知道是什么知道怎么用，我们要一点点调试。前期我在上海谈了十几家合作，加起来有20个点，我可能先把这20个点搞好。”孔尧说。
孔尧和他的团队认为，最具商业想象空间的还是企业...
浅析为什么char类型的范围是 -128~+127 - C/C++ - 清泛网 - 专注C/C++及内核技术
...，不然1000 0000 如何输出？这当然是我的一种推断，具体怎么实现还得问CPU的设计者了。。。。
再看一个例子：
char a=-129;
printf("%d",a) ; 会输入多少？？ 结果为127 ，为什么呢？
-129在补码为10 0111 1111 只...
How do I list all files of a directory?
... os
arr = next(os.walk('.'))[2]
print(arr)
>>> ['5bs_Turismo1.pdf', '5bs_Turismo1.pptx', 'esperienza.txt']
next(os.walk('.')) and os.path.join('dir', 'file')
import os
arr = []
for d,r,f in next(os.walk("F:\\_python")):
for file in f:
arr.append(os.path.join(r,fi...