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唱吧CEO陈华：创业初期不要找最贵的人 - 资讯 - 清泛网 - 专注C/C++及内核技术
...法去解决。这时候，就有点像阿里巴巴组织部的概念，你把一个人放在这条线上试了几个月，没有什么变化，CEO冲进去，帮了一阵发现自己也解决不了，也许可以换个人来做。比如把其它团队的人拎过来，换人就能带来新思维，...
内存优化总结:ptmalloc、tcmalloc和jemalloc - 操作系统(内核) - 清泛网 - ...
...它前后的 chunk 是否也是空闲的, 如果是的话,ptmalloc会首先把它们合并为一个大的 chunk, 然后将合并后的 chunk 放到 unstored bin 中。 另外ptmalloc 为了提高分配的速度,会把一些小的(不大于64B) chunk先放到一个叫做 fast bins 的容器内。
...
How can I beautify JavaScript code using Command Line?
...script engine, Rhino. "Install" is a little bit misleading; Download the zip file, extract everything, place js.jar in your Java classpath (or Library/Java/Extensions on OS X). You can then run scripts with an invocation similar to this
java -cp js.jar org.mozilla.javascript.tools.shell.Main na...
Filtering a list based on a list of booleans
...0 loops, best of 3: 2.58 us per loop
>>> %timeit [i for (i, v) in zip(list_a, fil) if v] #winner
100000 loops, best of 3: 1.98 us per loop
>>> list_a = [1, 2, 4, 6]*100
>>> fil = [True, False, True, False]*100
>>> %timeit list(compress(list_a, fil)) ...
How can I see the size of a GitHub repository before cloning it?
...d then check the in the same place.
Somewhat hacky: use the download as a zip file option, read the file size indicated and then cancel it.
I do not remember if downloading as a zip ever worked, but in any case, doing so now only downloads the currently selected branch with no history.
...
2016年最适合小投资的10个创业项目 - 资讯 - 清泛网 - 专注C/C++及内核技术
...装店肯定有市场。
开喜糖包装店经营提醒：开动脑筋，把喜糖的范围扩大。比如：洞房之喜、乔迁之喜、荣升之喜、金榜之喜、得子之喜、评职称、孩子考上托福出国等等。这些都是值得庆贺的喜事。人家买包喜糖与朋友分享...
Linux C/C++程序常用的调试手段及异常排查总结 - C/C++ - 清泛网 - 专注C/C++及内核技术
...先对开发过程中可能遇到的问题进行一个总结，大概可以把问题分为以下几类：必现的程序逻辑错误概率性错误进
痛并快乐着
今天讲讲C/C++程序的常用调试手段，介绍调试手段之前，我会首先对开发过程中可能遇到的...
Can I have multiple primary keys in a single table?
...ider normalizing your relation.
Example:
Person(id, name, email, street, zip_code, area)
There can be a functional dependency between id -> name,email, street, zip_code and area
But often a zip_code is associated with a area and thus there is an internal functional dependecy between zip_code ...
Mongoimport of json file
...cation to import it. D:\>mongoimport --db testimport --collection small_zip < D:\Dev\test test\small_zips.json The system cannot find the file specified. This works D:\>mongoimport --db testimport --collection small_zip < "D:\Dev\test test\small_zips.json" 2016-04-17T18:32:34.328+0800 ...
Shuffle two list at once with same order
... can do it as:
import random
a = ['a', 'b', 'c']
b = [1, 2, 3]
c = list(zip(a, b))
random.shuffle(c)
a, b = zip(*c)
print a
print b
[OUTPUT]
['a', 'c', 'b']
[1, 3, 2]
Of course, this was an example with simpler lists, but the adaptation will be the same for your case.
Hope it helps. Good L...