大约有 40,000 项符合查询结果(耗时:0.0320秒) [XML]

https://stackoverflow.com/ques... 

is vs typeof

... @nawfal, I initially thought your point about the boxing penalty made sense for struct types, but given that we're testing an object obj; variable, isn't it already boxed when this tends to be tested? Is there a case where you need to test ...
https://stackoverflow.com/ques... 

Alarm Manager Example

... I tried the solution from XXX and while it did initially work, at some point it stopped working. The onReceive never got called again. I spent hours trying to figure out what it could be. What I came to realize is that the Intent for whatever mysterious reason was no longer be...
https://stackoverflow.com/ques... 

How do I check whether a file exists without exceptions?

...open it. If you're not planning to open the file immediately, you can use os.path.isfile Return True if path is an existing regular file. This follows symbolic links, so both islink() and isfile() can be true for the same path. import os.path os.path.isfile(fname) if you need to be sure it...
https://stackoverflow.com/ques... 

Focus-follows-mouse (plus auto-raise) on Mac OS X

...defaults write org.x.X11 wm_ffm -bool true Apparently there's a program called CodeTek Virtual Desktop that'll emulate it systemwide, but it costs $$ (and they never got a version out for OSX Leopard). share | ...
https://stackoverflow.com/ques... 

How are everyday machines programmed?

...ier, but they are the same thing. Coca-cola machines, routers, etc. typically use a realtime OS like QNX, EMBOS, or sometimes RTlinux if you're lucky. Most of these are proprietary OS you license for lots of money, but they have C compilers, drivers to work with hardware, etc. http://www.qnx.com...
https://stackoverflow.com/ques... 

How do I send a JSON string in a POST request in Go

... fmt.Println("response Headers:", resp.Header) body, _ := ioutil.ReadAll(resp.Body) fmt.Println("response Body:", string(body)) } share | improve this answer | fol...
https://stackoverflow.com/ques... 

C++ Dynamic Shared Library on Linux

...were for a plugin system, you would use MyClass as a base class and define all the required functions virtual. The plugin author would then derive from MyClass, override the virtuals and implement create_object and destroy_object. Your main application would not need to be changed in any way. ...
https://stackoverflow.com/ques... 

How to run a shell script in OS X by double-clicking?

... to select terminal you need to switch from "Recommended Applications" to "All Applications". (The Terminal.app application can be found in the Utilities folder) NOTE that unless you don't want to associate all files with this extension to be run in terminal you should not have "Always Open With" c...
https://stackoverflow.com/ques... 

How to remove files and directories quickly via terminal (bash shell) [closed]

... +1 and glad you added the "Be careful!" part... definitely a "Sawzall" command that can quickly turn a good day into a bad one.. if wielded carelessly. – itsmatt Apr 15 '10 at 1:30 ...
https://stackoverflow.com/ques... 

Clear terminal in Python [duplicate]

... Note that this is not portable across all terminal types... not that you'll run into too many odd types these days... – Ignacio Vazquez-Abrams Jan 18 '10 at 7:44 ...