大约有 560 项符合查询结果（耗时：0.0098秒） [XML]
Easiest way to detect Internet connection on iOS?
...through HTTPUrlConnection instantly fail if there is no connection available. This seems like completely sane behavior, and I was surprised to find NSURLConnection in iOS did not emulate it.
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How to use android emulator for testing bluetooth application?
...er settings of the virtual machine, Goto serialports -> Port 1 check Enable serial port select a port number
then select port mode as disconnected click ok. now, start virtual
machine. Under Devices -> USB Devices -> you can find your laptop
bluetooth listed. You can simply check t...
What is the appropriate HTTP status code response for a general unsuccessful request (not an error)?
...ul response and serve it to
subsequent clients even when clients may be able to make a successful
request.
I'll leave it to you to decide between 4xx and 5xx, but you should use an error status code.
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2015年硅谷最火的高科技创业公司都有哪些 - 资讯 - 清泛网 - 专注C/C++及内核技术
...会说某一个东西，而是指生态系统，在这里面太多交互的组件了，涉及到IO，处理，应用，配置，工作流。在真正的工作中，当几个组件互相影响，你头疼的维护才刚刚开始。我也简单说几个：Hadoop Core就三个HDFS，MapReduce，Common...
C++使用OLE/COM高速读写EXCEL的源码 - C/C++ - 清泛网 - 专注C/C++及内核技术
...可以通过MSDN的Office Development进行查询。
VS2010导入OLE/COM组件的接口的步骤为：Project->Class Wizard->Add Class->MFC Class From TypeLib，先选择要导入的组件所在的路径，即Excel.exe所在的路径，然后再选择
要导入的Excel类型库中的接口。
在...
Android Studio/Intellij Idea: “Table of Contents” for a class
...I have seen. One thing that has been annoying me though is this lack of "Table of Contents" for a class. I apologize for not knowing exactly what to call it. But what I am referring to is the dropdown menu in eclipse that lists all the methods, interfaces, classes and so on that are in that class fi...
Understanding ibeacon distancing
... basic concept of how distancing with ibeacon (beacon/ Bluetooth-lowenergy/BLE) can work. Is there any true documentation on how far exactly an ibeacon can measure. Lets say I am 300 feet away...is it possible for an ibeacon to detect this?
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import module from string variable
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importlib should be avaliable on pypi for < python2.7
– Jeffrey Jose
Aug 19 '12 at 12:12
51
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How to set an environment variable only for the duration of the script?
On Linux (Ubuntu 11.04) in bash, is it possible to temporarily set an environment variable that will only be different from the normal variable for the duration of the script? For example, in a shell script, making an app that saves to HOME portable by temporarily setting HOME to a folder in the pre...
Where to place $PATH variable assertions in zsh?
I love zsh , but I am not sure where to place my $PATH and other variable assertions? I find that they are scattered between the files .zshrc .zprofile .bashrc .bash_profile , and sometimes doubled.
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