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Apache 404页配置方法 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...ww.tsingfun.com/404.html
404页面对SEO的影响
当搜索引擎搜索一个错误链接的时候，如果你没有设置404页面，那么他就会判断你这个链接是是一个有效但是无用的网页。这个时候对网站是非常不利的!如果我们设置了404页面，当蜘蛛...
Apache 404页配置方法 - 更多技术 - 清泛网移动版 - 专注C/C++及内核技术
...ww.tsingfun.com/404.html
404页面对SEO的影响
当搜索引擎搜索一个错误链接的时候，如果你没有设置404页面，那么他就会判断你这个链接是是一个有效但是无用的网页。这个时候对网站是非常不利的!如果我们设置了404页面，当蜘蛛...
Apache 404页配置方法 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...ww.tsingfun.com/404.html
404页面对SEO的影响
当搜索引擎搜索一个错误链接的时候，如果你没有设置404页面，那么他就会判断你这个链接是是一个有效但是无用的网页。这个时候对网站是非常不利的!如果我们设置了404页面，当蜘蛛...
What is the relationship between the docker host OS and the container base image OS?
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As mentioned by BraveNewCurrency, the only relationship between the host OS and the container is the Kernel.
It is one of the main difference between docker and 'regular' virtual machines, there is no overhead, everything takes place directly within the host's kernel.
This is why you can run...
is vs typeof
...The second line, if (obj.GetType() == typeof(ClassA)) {}, is faster, for those that don't want to read the article.
(Be aware that they don't do the same thing)
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How to find out the number of CPUs using python
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On Python 3.6.2 I could only use os.cpu_count()
– Achilles
Sep 11 '17 at 19:59
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Python list directory, subdirectory, and files
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Use os.path.join to concatenate the directory and file name:
for path, subdirs, files in os.walk(root):
for name in files:
print os.path.join(path, name)
Note the usage of path and not root in the concatenation, sinc...
Relative paths in Python
... the file that has the script, you want to do something like this:
import os
dirname = os.path.dirname(__file__)
filename = os.path.join(dirname, 'relative/path/to/file/you/want')
This will give you the absolute path to the file you're looking for. Note that if you're using setuptools, you shoul...
记一次MongoDB性能问题 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
记一次MongoDB性能问题最近忙着把一个项目从MySQL迁移到MongoDB，在导入旧数据的过程中，遇到了些许波折，犯了不少错误，但同时也学到了不少知识，遂记录下来。公...最近忙着把一个项目从MySQL迁移到MongoDB，在导入旧数据的过...
Is leaked memory freed up when the program exits?
...t a process no longer has a reference to, and thus can no longer free. The OS still keeps track of all the memory allocated to a process, and will free it when that process terminates.
In the vast majority of cases the OS will free the memory - as is the case with normal "flavors" of Windows, Linux...