大约有 40,000 项符合查询结果(耗时:0.0567秒) [XML]

https://stackoverflow.com/ques... 

C# operator overload for `+=`?

...nguage has its own operators list, which are compiled in a special method calls, and CLR itself doesn't know anything about operators. So let's see what exactly stays behind the + and += operators. See this simple code: Decimal d = 10M; d = d + 10M; Console.WriteLine(d); Let view the IL-code for...
https://stackoverflow.com/ques... 

If table exists drop table then create it, if it does not exist just create it

...s case than not to cover, see locking note below). Second RENAME ... atomically replaces table definition, refer to MySQL manual for details. At last, DROP ... just cleans up the old table, obviously. Wrapping all statements with something like SELECT GET_LOCK('__upgrade', -1); ... DO RELEASE_LOCK...
https://stackoverflow.com/ques... 

node.js global variables?

... Globals are generally to be avoided, but if you really want to use them. The 3 statements below are all equivalent and will assign a var to the global scope: GLOBAL._ = require('underscore'); global._ = require('underscore'); _ = require('und...
https://stackoverflow.com/ques... 

Define css class in django Forms

... The only sane solution, I must say. Thank you!. Python code, and especially in form's definition, is the last place to put stuff for styling - these definitely belong to the templates. – Boris Chervenkov Nov 12 '11 at 23:09 ...
https://stackoverflow.com/ques... 

Use of #pragma in C

...take some action, override some default, etc. that may or may not apply to all machines and operating systems. See msdn for more info. share | improve this answer | follow ...
https://stackoverflow.com/ques... 

Differences and relationship between glActiveTexture and glBindTexture

...ve "texture unit". Each texture unit can have multiple texture targets (usually GL_TEXTURE_1D, 2D, 3D or CUBE_MAP). 4 Answe...
https://stackoverflow.com/ques... 

Efficient Algorithm for Bit Reversal (from MSB->LSB to LSB->MSB) in C

... NOTE: All algorithms below are in C, but should be portable to your language of choice (just don't look at me when they're not as fast :) Options Low Memory (32-bit int, 32-bit machine)(from here): unsigned int reverse(register ...
https://stackoverflow.com/ques... 

Virtual Memory Usage from Java under Linux, too much memory used

... a long-standing complaint with Java, but it's largely meaningless, and usually based on looking at the wrong information. The usual phrasing is something like "Hello World on Java takes 10 megabytes! Why does it need that?" Well, here's a way to make Hello World on a 64-bit JVM claim to take over 4...
https://stackoverflow.com/ques... 

background function in Python

...em is. I've got a function that downloads the image needed and saves it locally. Right now it's run inline with the code that displays a message to the user, but that can sometimes take over 10 seconds for non-local images. Is there a way I could call this function when it's needed, but run it in t...
https://stackoverflow.com/ques... 

Why does Razor _layout.cshtml have a leading underscore in file name?

...ith the underscore. And the Web Pages framework has been configured not to allow files with leading underscores in their names from being requested directly. Other .cshtml files within Web Pages generally need to be browsable. They are the equivalent of .asp or .php files. The ASP.NET team have sta...