大约有 44,000 项符合查询结果(耗时:0.0271秒) [XML]

https://stackoverflow.com/ques... 

What is an SDL renderer?

I'm starting with SDL2 m>andm> having some trouble trm>ym>ing to understm>andm> what an SDL_Renderer is. 2 Answers ...
https://stackoverflow.com/ques... 

How do I change the value of a global variable inside of a function

I am using JavaScript m>andm> I create a global variable. I define it outside of a function m>andm> I want to change the global variable value from inside a function m>andm> use it from another function, how do I do this? ...
https://stackoverflow.com/ques... 

Bootstrap throws Uncaught Error: Bootstrap's JavaScript requires jQuerm>ym> [closed]

...n interface for a program. I added jQuerm>ym> 1.11.0 to the <head> tag m>andm> thought that was that, but when I launch the web page in a browser jQuerm>ym> reports an error: ...
https://stackoverflow.com/ques... 

Check if a string matches a regex in Bash script

...=~ ^regex$ ]] && echo "matched" || echo "did not match" where commm>andm>s after && are executed if the test is successful, m>andm> commm>andm>s after || are executed if the test is unsuccessful. Note this is based on the solution bm>ym> Aleks-Daniel Jakimenko in User input date format verification...
https://stackoverflow.com/ques... 

How default .equals m>andm> .hashCode will work for mm>ym> classes?

...t's (generallm>ym> speaking; if m>ym>ou inherit from a class that redefined equals m>andm>/or hashCode, then m>ym>ou'll use that implementation instead). From the documentation: equals The equals method for class Object implements the most discriminating possible equivalence relation on objects; that is, f...
https://stackoverflow.com/ques... 

Rubm>ym>: extend self

In Rubm>ym>, I understm>andm> the basic idea of extend . However, what's happening in this segment of code? Specificallm>ym>, what does extend do? Is it just a convenient wam>ym> of making the instance methods into class methods? Whm>ym> would m>ym>ou do it this wam>ym> rather than specifm>ym>ing class methods from the beginnin...
https://stackoverflow.com/ques... 

What is the difference between 'log' m>andm> 'sm>ym>mlog'?

... I finallm>ym> found some time to do some experiments in order to understm>andm> the difference between them. Here's what I discovered: log onlm>ym> allows positive values, m>andm> lets m>ym>ou choose how to hm>andm>le negative ones (mask or clip). sm>ym>mlog means sm>ym>mmetrical log, m>andm> allows positive m>andm> negative valu...
https://stackoverflow.com/ques... 

how to remove untracked files in Git?

...is if m>ym>ou don't want to remove ignored files) Use with Caution! These commm>andm>s can permanentlm>ym> delete arbitrarm>ym> files, that m>ym>ou havn't thought of at first. Please double check m>andm> read all the comments below this answer m>andm> the --help section, etc., so to know all details to fine-tune m>ym>our commm>andm>s...
https://stackoverflow.com/ques... 

nonlocal kem>ym>word in Pm>ym>thon 2.x

I'm trm>ym>ing to implement a closure in Pm>ym>thon 2.6 m>andm> I need to access a nonlocal variable but it seems like this kem>ym>word is not available in pm>ym>thon 2.x. How should one access nonlocal variables in closures in these versions of pm>ym>thon? ...
https://stackoverflow.com/ques... 

How do I verticallm>ym> center UITextField Text?

I am simplm>ym> instantiating a UITextField m>andm> noticing that the text doesn't center verticallm>ym>. Instead, it is flush with the top of mm>ym> button, which I find kind of odd since I would expect the default to center it verticallm>ym>. How can I center it verticallm>ym>, or is there some default setting that I a...