大约有 45,000 项符合查询结果（耗时：0.1091秒） [XML]
Python extending with - using super() Python 3 vs Python 2
... super(__class__) gives NameError: global name '__class__' is not defined, and super(self.__class__) is erroneous as well. You must provide an instance as a second argument, which would suggest you need to do super(self.__class__, self), but that is wrong. If Class2 inherits from Class1 and Class1 c...
How to declare a structure in a header that is to be used by multiple files in c?
...each source file needed it.
The right way is putting it in an header file, and include this header file whenever needed.
shall we open a new header file and declare the structure there and include that header in the func.c?
This is the solution I like more, because it makes the code highly modular. ...
What are the differences between 'call-template' and 'apply-templates' in XSL?
...name="dosomething">.
<xsl:apply-templates> is a little different and in it is the real power of XSLT: It takes any number of XML nodes (whatever you define in the select attribute), iterates them (this is important: apply-templates works like a loop!) and finds matching templates for them:...
How to get StackPanel's children to fill maximum space downward?
I simply want flowing text on the left, and a help box on the right.
4 Answers
4
...
How to check whether a pandas DataFrame is empty?
How to check whether a pandas DataFrame is empty? In my case I want to print some message in terminal if the DataFrame is empty.
...
Git Cherry-pick vs Merge Workflow
Assuming I am the maintainer of a repo, and I want to pull in changes from a contributor, there are a few possible workflows:
...
How to check which locks are held on a table
...first block that caused the other blocks.
Edit to add comment from @MikeBlandford:
The blocked column indicates the spid of the blocking process. You can run kill {spid} to fix it.
share
|
im...
Maven: add a dependency to a jar by relative path
...
I want the jar to be in a 3rdparty lib in source control, and link to it by relative path from the pom.xml file.
If you really want this (understand, if you can't use a corporate repository), then my advice would be to use a "file repository" local to the project and to not use a ...
In JavaScript, does it make a difference if I call a function with parentheses?
...
window.onload = initAll();
This executes initAll() straight away and assigns the function's return value to window.onload. This is usually not what you want. initAll() would have to return a function for this to make sense.
window.onload = initAll;
this assigns the actual function to ...
Does const mean thread-safe in C++11?
...ad-safe in C++11. Is that true?
It is somewhat true...
This is what the Standard Language has to say on thread-safety:
[1.10/4]
Two expression evaluations conflict if one of them modifies a memory location (1.7) and the other one accesses or modifies the same memory location.
[1.10/21]
The executi...