大约有 45,000 项符合查询结果(耗时:0.0439秒) [XML]

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How can I swap positions of two open files (in splits) in vim?

Assume I've got some arbitrary layout of splits in vim. 12 Answers 12 ...
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Can modules have properties the same way that objects can?

With python properties, I can make it such that 6 Answers 6 ...
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what does the __file__ variable mean/do?

I usually just hard-wire these with the actual path. But there is a reason for these statements that determine path at runtime, and I would really like to understand the os.path module so that I can start using it. ...
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C/C++ line number

...func__ : function name (this is part of C99, not all C++ compilers support it) __DATE__ : a string of form "Mmm dd yyyy" __TIME__ : a string of form "hh:mm:ss" Your code will be : if(!Logical) printf("Not logical value at line number %d in file %s\n", __LINE__, __FILE__); ...
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How to print instances of a class using print()?

...rint(t) member of Test The __str__ method is what happens when you print it, and the __repr__ method is what happens when you use the repr() function (or when you look at it with the interactive prompt). If this isn't the most Pythonic method, I apologize, because I'm still learning too - but it w...
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Why aren't superclass __init__ methods automatically invoked?

Why did the Python designers decide that subclasses' __init__() methods don't automatically call the __init__() methods of their superclasses, as in some other languages? Is the Pythonic and recommended idiom really like the following? ...
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Are static class variables possible in Python?

Is it possible to have static class variables or methods in Python? What syntax is required to do this? 21 Answers ...
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__getattr__ on a module

...le, use a module as a context manager simply by defining __enter__ and __exit__, before those tricks broke. Recently some historical features have made a comeback, the module __getattr__ among them, and so the existing hack (a module replacing itself with a class in sys.modules at import time) sho...
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Difference between left join and right join in SQL Server [duplicate]

...indeed completely interchangeable. Try however Table2 left join Table1 (or its identical pair, Table1 right join Table2) to see a difference. This query should give you more rows, since Table2 contains a row with an id which is not present in Table1. ...
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Print all properties of a Python Class [duplicate]

I have a class Animal with several properties like: 6 Answers 6 ...