大约有 32,000 项符合查询结果(耗时:0.0515秒) [XML]

https://stackoverflow.com/ques... 

Code signing certificate for open-source projects?

...icate for free after the 1-year period? Or is this just a trial period and then it becomes a paid certificate? – Al-Khwarizmi Dec 19 '14 at 9:36 1 ...
https://stackoverflow.com/ques... 

Use RSA private key to generate public key?

...ey, the public key doesn't get stored. However if you have the private key then you can calculate (derive) the public key from it - which is what the 2nd command above does. It calculates, not extracts, the public key. – steveayre Feb 27 '13 at 14:59 ...
https://stackoverflow.com/ques... 

Where does the “flatmap that s***” idiomatic expression in Scala come from?

...e reasoning behind this phrase is that you can replace a lot of tedious if/then/else code you would write with calls to flatMap (and other higher order functions). This is especially true for Options (see http://tonymorris.github.io/blog/posts/scalaoption-cheat-sheet/) But it applies to other mon...
https://stackoverflow.com/ques... 

Android studio, gradle and NDK

... rosy... If you're using SWIG to wrap a library to auto-generate code, and then try to use the native keyword auto-generation, it will put the code in the wrong place in your Swig _wrap.cxx file... So you need to move it into the "extern C" block: UPDATE: October 15, 2017 I'd be remiss if I didn...
https://stackoverflow.com/ques... 

Best way to structure a tkinter application? [closed]

... on a button or something So what you could do is write classes for these then have methods in the class that handle commands for the button clicks and such. Here's an example: import tkinter as tk class Window1: def __init__(self, master): pass # Create labels, entries,butto...
https://stackoverflow.com/ques... 

Can you add new statements to Python's syntax?

...rogram is run to re-generate Include/graminit.h and Python/graminit.c, and then several files get re-compiled. Modifying the AST generation code After the Python parser has created a parse tree, this tree is converted into an AST, since ASTs are much simpler to work with in subsequent stages of th...
https://stackoverflow.com/ques... 

Joda-Time: what's the difference between Period, Interval and Duration?

...r is a leap year or not. Similarly if we add 1 month to the 1st of a month then we will arrive at the 1st of the next month but the duration (in milliseconds) will vary based on the month in question For question 3, A specific method to divide a duration is not really needed because we can always...
https://stackoverflow.com/ques... 

java: Class.isInstance vs Class.isAssignableFrom

... I agree that when clazz is a Foo, then clazz.isAssignableFrom(Foo.class) is true. Where did I say otherwise? – uckelman Apr 2 '13 at 9:09 5...
https://stackoverflow.com/ques... 

How do I check for a network connection?

...atus Indicator) technic: NCSI performs a DNS lookup on www.msftncsi.com, then requests http://www.msftncsi.com/ncsi.txt. This file is a plain-text file and contains only the text 'Microsoft NCSI'. NCSI sends a DNS lookup request for dns.msftncsi.com. This DNS address should resolve to 131.107.255....
https://stackoverflow.com/ques... 

Why sizeof int is wrong, while sizeof(int) is right?

...e the same with sizeof, I guess. But in C++ you can say sizeof int() which then would have been ambiguous (type or value initialized int?). – Johannes Schaub - litb Oct 30 '12 at 10:06 ...