大约有 40,000 项符合查询结果(耗时:0.0452秒) [XML]

https://stackoverflow.com/ques... 

How to write an inline IF statement in JavaScript?

... Just to note, all parens in this case are optional. It is often personal preference/coding style that dictates when they are used. – Will Klein Apr 22 '12 at 18:46 ...
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...
https://stackoverflow.com/ques... 

What is this Javascript “require”?

...es are a way to split an application into separate files instead of having all of your application in one file. This concept is also present in other languages with minor differences in syntax and behavior, like C's include, Python's import, and so on. One big difference between Node.js modules and...
https://stackoverflow.com/ques... 

Measuring the distance between two coordinates in PHP

...- http://www.codexworld.com/distance-between-two-addresses-google-maps-api-php/ $latitudeFrom = '22.574864'; $longitudeFrom = '88.437915'; $latitudeTo = '22.568662'; $longitudeTo = '88.431918'; //Calculate distance from latitude and longitude $theta = $longitudeFrom - $longitudeTo; $dist = sin(de...
https://stackoverflow.com/ques... 

Does Python have “private” variables in classes?

...ass variables. In Java, nothing prevents you from doing the same if you really want to - after all, you can always edit the source of the class itself to achieve the same effect. Python drops that pretence of security and encourages programmers to be responsible. In practice, this works very nicely...
https://www.tsingfun.com/it/tech/1079.html 

MVC演化史 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...辑的处理。 Application Model MVC虽然看似解决了复杂逻辑的问题,但它仍然存在硬伤: 首先随着以微软视窗为主的图形化操作系统的兴起,操作系统本身提供了一套原生的View接口,用来截获用户通过鼠标或键盘发出的请求,结果...
https://www.tsingfun.com/it/da... 

【Mysql】报mysqli_real_connect(): (HY000/2002)错误 - 数据库(内核) - 清...

...后,所有的mysql文件都在指定的目录或者data目录下面,而php默认只会通过 temp mysql.sock路径寻找soc...原因分析: 手动编译安装mysql指定位置后,所有的mysql文件都在指定的目录或者data目录下面,而php默认只会通过/temp/mysql.sock路径...
https://stackoverflow.com/ques... 

How do I get the current time zone of MySQL?

...ng the web server and the DB server it's talking to are set to [if not actually in] the same timezone isn't a huge leap.) But beware that (as with MySQL), you can set the timezone that PHP uses (date_default_timezone_set), which means it may report a different value than the OS is using. If you're i...
https://stackoverflow.com/ques... 

Two submit buttons in one form

... Normally, all inputs in the form are sent with the form. Since a button's value is submitted only if clicked, you'd have to search the form values for these pre-defined names. I think the other answer (stackoverflow.com/a/21778...
https://stackoverflow.com/ques... 

How do I append one string to another in Python?

...ugh memory to resize the string, the original string object at *pv is deallocated, *pv is set to NULL, an "out of memory" exception is set, and -1 is returned. Else (on success) 0 is returned, and the value in *pv may or may not be the same as on input. As always, an extra byte is alloc...