大约有 40,000 项符合查询结果(耗时:0.0543秒) [XML]

https://stackoverflow.com/ques... 

How do I hide a menu item in the actionbar?

... Get a MenuItem pointing to such item, call setVisible on it to adjust its visibility and then call invalidateOptionsMenu() on your activity so the ActionBar menu is adjusted accordingly. Update: A MenuItem is not a regular view that's part of your layout. Its som...
https://stackoverflow.com/ques... 

Is it Linq or Lambda?

... This is LINQ (using query syntax): var _Results = from item in _List where item.Value == 1 select item; This is also LINQ (using method syntax): var _Results = _List.Where(x => x.Value == 1); It's interesting to note that bo...
https://stackoverflow.com/ques... 

JSON formatter in C#?

... Cool! Looks like that was added in .NET Core 3.0 actually, which was released September 23, 2019 – mpen Aug 25 at 0:34 add a comment  |...
https://stackoverflow.com/ques... 

@try - catch block in Objective-C

... All work perfectly :) NSString *test = @"test"; unichar a; int index = 5; @try { a = [test characterAtIndex:index]; } @catch (NSException *exception) { NSLog(@"%@", exception.reason); NSLog(@"Char at in...
https://stackoverflow.com/ques... 

Convert .pem to .crt and .key

... Converting Using OpenSSL These commands allow you to convert certificates and keys to different formats to make them compatible with specific types of servers or software. Convert a DER file (.crt .cer .der) to PEM openssl x509 -inform der -in certificate.cer -o...
https://stackoverflow.com/ques... 

Suppress/ print without b' prefix for bytes in Python 3

... If we take a look at the source for bytes.__repr__, it looks as if the b'' is baked into the method. The most obvious workaround is to manually slice off the b'' from the resulting repr(): >>> x = b'\x01\x02\x03\x04' >>> print(repr(x)) b'\x01\x02...
https://stackoverflow.com/ques... 

Bash if statement with multiple conditions throws an error

...ions. tldp.org/LDP/Bash-Beginners-Guide/html/sect_07_01.html Update Actually you could still use && and || with the -eq operation. So your script would be like this: my_error_flag=1 my_error_flag_o=1 if [ $my_error_flag -eq 1 ] || [ $my_error_flag_o -eq 2 ] || ([ $my_error_flag -eq 1 ] ...
https://stackoverflow.com/ques... 

How to use Git for Unity3D source control?

...ith 3D Games Update Oct 2015: GitHub has since released a plugin for Git called Git LFS that directly deals with the below problem. You can now easily and efficiently version large binary files! Git can work fine with 3D games out of the box. However the main caveat here is that versioning large (...
https://stackoverflow.com/ques... 

What does each of the [y,n,q,a,d,/,K,j,J,g,e,?] stand for in context of git -p

...this hunk nor any of the remaining ones a - stage this hunk and all later hunks in the file d - do not stage this hunk nor any of the later hunks in the file g - select a hunk to go to / - search for a hunk matching the given regex j - leave thi...
https://stackoverflow.com/ques... 

how to “reimport” module to python then code be changed after import

...port sys then reload(sys.modules['foo']) or perhaps reload(sys.modules[bar.__module__]) – drevicko Oct 28 '13 at 1:02 3 ...