大约有 40,000 项符合查询结果(耗时:0.0392秒) [XML]

https://stackoverflow.com/ques... 

Finding all possible combinations of numbers to reach a given sum

How would you go about testing all possible combinations of additions from a given set N of numbers so they add up to a given final number? ...
https://stackoverflow.com/ques... 

What is the most pythonic way to check if an object is a number?

...and is not iterable" could be a good definition in some cases. But, you really need to ask yourself, what it is that you're asking that what you want to consider "a number" must definitely be able to do, and what it must absolutely be unable to do -- and check. This may also be needed in 2.6 or la...
https://stackoverflow.com/ques... 

Python class inherits object

... so are numerous, to list some of them: Support for descriptors. Specifically, the following constructs are made possible with descriptors: classmethod: A method that receives the class as an implicit argument instead of the instance. staticmethod: A method that does not receive the implicit ar...
https://stackoverflow.com/ques... 

How can I make a time delay in Python? [duplicate]

...print less frequently than that, because it takes time to print and handle all the buffers that entails (possibly doing a kernel context switch), and to register the alarm signal, but... yeah. A little under once per minute. – Parthian Shot Jun 17 '15 at 19:29 ...
https://stackoverflow.com/ques... 

How do I import other TypeScript files?

... You can use the --all flag with tsc on your main .ts file. The compiler figures out all the dependencies based on your reference tags and generates a single output .js file for the entire application: tsc --out app.js main.ts ...
https://stackoverflow.com/ques... 

Explicitly calling return in a function or not

...ek from the R core team (I believe) for recommending a user to explicitly calling return at the end of a function (his comment was deleted though): ...
https://stackoverflow.com/ques... 

Creating C macro with ## and __LINE__ (token concatenation with positioning macro)

...lizing) unless the result needs to be "stringified". Gcc has features but ALL can be done with plain C version 1 (and some argue Berkeley 4.3 C is so much faster it's worth learning how to use). **Clang (llvm) DOES NOT DO WHITE SPACE CORRECTLY for macro expansion - it adds whitespace (which certai...
https://stackoverflow.com/ques... 

List goals/targets in GNU make that contain variables in their definition

...utput from make -pn (i.e. make --print-data-base --dry-run)? It prints out all the variables, rules, implicit rules and which commands will be run in laborious detail. share | improve this answer ...
https://stackoverflow.com/ques... 

How to find the JVM version from a program?

... That JMX call returns the equivalent of "java.vm.version", not "java.version". These are usually (but not necessarily) the same. – Alex Miller Jun 21 '13 at 15:54 ...
https://stackoverflow.com/ques... 

How to read a (static) file from inside a Python package?

... [added 2016-06-15: apparently this doesn't work in all situations. please refer to the other answers] import os, mypackage template = os.path.join(mypackage.__path__[0], 'templates', 'temp_file') s...