大约有 45,000 项符合查询结果（耗时：0.0421秒） [XML]
Run a string as a command within a Bash script
...p -Eo '[[:digit:]]{4}[[:digit:]]{2}[[:digit:]]{2}')
echo $cmd
My output is now 20200824
share
|
improve this answer
|
follow
|
...
Convert sqlalchemy row object to python dict
... __dict__ includes an _sa_instance_state entry which must then be removed. if you upgrade to a future version and other attributes are added you may have to go back and manually deal with them. if you want just column data (for example, to take a list of instances from a query and drop them in a pan...
How can I tell gcc not to inline a function?
...
You want the gcc-specific noinline attribute.
This function attribute prevents a
function from being considered for
inlining. If the function does not
have side-effects, there are
optimizations other than inlining that
causes functi...
C++及Windows异常处理(try，catch; __try,__finally, __except) - C/C++ - ...
...
}
catch( 类型名 [形参名] ) /* 异常说明符（exception specifier）*/
{ }
catch( 类型名 [形参名] )
{ }
C++的异常处理很简单，就是如上的三个关键字，注意C++中throw，catch之后没有Java等语言中的finally。
Q: 为何C++不提供“finally”结...
ElasticSearch, Sphinx, Lucene, Solr, Xapian. Which fits for which usage? [closed]
... to maintain.
In terms of Lucene usability, way back when (almost 6 years now), I created Compass. Its aim was to simplify using Lucene and make everyday Lucene simpler. What I came across time and time again is the requirement to be able to have Compass distributed. I started to work on it from wi...
How do I get Flask to run on port 80?
...rowing up that error message because you have apache2 running on port 80.
If this is for development, I would just leave it as it is on port 5000.
If it's for production either:
Not Recommended
Stop apache2 first;
Not recommended as it states in the documentation:
You can use the builtin...
How can I force users to access my page over HTTPS instead of HTTP?
...e). How do I do this without making the whole directory require HTTPS? Or, if you submit a form to an HTTPS page from an HTTP page, does it send it by HTTPS instead of HTTP?
...
ImportError in importing from sklearn: cannot import name check_build
...
Check if there is a file called "sklearn" in the same folder. Try running from a different folder. Solved it for me (my fault). Find file with <ls | grep -i "sklearn">
– Punnerud
Mar 3 '...
how to rotate a bitmap 90 degrees
...Hey arvis I tried your suggestion and it works for the orientation however now I am getting a much smaller portrait centered image. Any ideas ?
– Doug Ray
Dec 1 '15 at 2:26
ad...
Naming convention - underscore in C++ and C# variables
...is simply a convention; nothing more. As such, its use is always somewhat different to each person. Here's how I understand them for the two languages in question:
In C++, an underscore usually indicates a private member variable.
In C#, I usually see it used only when defining the underlying priv...