大约有 42,000 项符合查询结果(耗时:0.0250秒) [XML]

https://stackoverflow.com/ques... 

Get PHP class property by string

...t actually succeed, although this is likely to be a bug. $name is silently cast to an integer. In the case of a non-numeric string this is 0. Then this string index of the value of $property is used as the property name. If $property holds the value "abc", then this will refer to the property $this-...
https://stackoverflow.com/ques... 

json_decode to array

... This is a late contribution, but there is a valid case for casting json_decode with (array). Consider the following: $jsondata = ''; $arr = json_decode($jsondata, true); foreach ($arr as $k=>$v){ echo $v; // etc. } If $jsondata is ever returned as an empty string (as in my ...
https://stackoverflow.com/ques... 

Getting mouse position in c#

...g System.Windows; // Or use whatever point class you like for the implicit cast operator /// <summary> /// Struct representing a point. /// </summary> [StructLayout(LayoutKind.Sequential)] public struct POINT { public int X; public int Y; public static implicit operator Poi...
https://stackoverflow.com/ques... 

How to detect if app is being built for device or simulator in Swift

...pect the TARGET_OS_SIMULATOR variable (or TARGET_IPHONE_SIMULATOR in iOS 8 and below), which is truthy on a simulator. Please notice that this is different and slightly more limited than using a preprocessor flag. For instance you won't be able to use it in place where a if/else is syntactically in...
https://stackoverflow.com/ques... 

Swift double to string

Before I updated xCode 6, I had no problems casting a double to a string but now it gives me an error 14 Answers ...
https://stackoverflow.com/ques... 

Cannot use object of type stdClass as array?

... you can do something like this: $result = json_decode($json, true); Or cast the object to an array: $result = (array) json_decode($json); share | improve this answer | ...
https://stackoverflow.com/ques... 

What is the relationship between the docker host OS and the container base image OS?

...tion... but while I have been reading everything docker that I can get my hands on I see that I can install Docker on Ubuntu 12.04 (for example) and then I can install a Fedora container or a different version of ubuntu? (there is an example where the user installed busybox in the container.) ...
https://www.tsingfun.com/it/os... 

第一个Hello,OS World操作系统 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术

第一个Hello,OS World操作系统hello_os_word_my_first_os操作系统并非我们想象中的深不可测、遥不可及,只要你对它感兴趣并随我一起动手实践,你也能开发出属于自己的os。本文通过一个最简单的os,完成Hello, OS World文字的输出来演示os...
https://www.tsingfun.com/ilife/idea/440.html 

微软VS苹果 桌面操作系统的终极一战 - 创意 - 清泛网 - 专注C/C++及内核技术

... 桌面操作系统的终极一战苹果将在九月份推出正式版的OS X El Capitan。虽然对于苹果来说,这看上去只是每年一次的例行升级,不过结合微软在7月底的大动作,今年的桌面操作系统大战,很有可能是这两家巨头厂商对于抢夺用户...
https://stackoverflow.com/ques... 

Installing Java on OS X 10.9 (Mavericks)

....8 (Mountain Lion). When I upgraded it to Mac OS X v10.9 (Mavericks) and ran java -version in the terminal, it showed: ...