大约有 40,000 项符合查询结果(耗时:0.0540秒) [XML]

https://stackoverflow.com/ques... 

Transpose/Unzip Function (inverse of zip)?

...'d', 4)]) [('a', 'b', 'c', 'd'), (1, 2, 3, 4)] The way this works is by calling zip with the arguments: zip(('a', 1), ('b', 2), ('c', 3), ('d', 4)) … except the arguments are passed to zip directly (after being converted to a tuple), so there's no need to worry about the number of arguments g...
https://stackoverflow.com/ques... 

What is normalized UTF-8 all about?

.... Compatibility Normalization Unicode also includes many characters that really do not belong, but were used in legacy character sets. Unicode added these to allow text in those character sets to be processed as Unicode, and then be converted back without loss. Compatibility normalization converts t...
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... 

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 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... 

Checking if a string can be converted to float in Python

...False print(isfloat("12.34.56")) False Two dots not allowed. print(isfloat("#56")) False print(isfloat("56%")) False print(isfloat("0E0")) True print(isfloat("x86E0")) False print(isfloat("86-5")) ...
https://stackoverflow.com/ques... 

LINQ Select Distinct with Anonymous Types

...on of objects. The exact type isn't important. From it I want to extract all the unique pairs of a pair of particular properties, thusly: ...
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 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... 

Entity Attribute Value Database vs. strict Relational Model Ecommerce

...l entities "properly", but add "extensions" for custom attributes for some/all entities) Pro/Con: more time required to gather requirements and design than option 1 but perhaps not as much as option 2 * Con: new entities must be modelled and designed by a professional Pro: new attributes might be ...