大约有 46,000 项符合查询结果(耗时:0.0418秒) [XML]

https://stackoverflow.com/ques... 

how to use “AND”, “OR” for RewriteCond on Apache?

Is this how to use AND, OR for RewriteCond on Apache? 3 Answers 3 ...
https://stackoverflow.com/ques... 

Is a Python list guaranteed to have its elements stay in the order they are inserted in?

... what if I return a local list from a function and use that in the calling function. That is def fn_1(): lst = [] lst.append(1) lst.append(2) return lst and def fn_2(): print(fn_1()) Will the order be same ALWAYS irrespective of how many times or where ever I use fn_1() ?...
https://stackoverflow.com/ques... 

What is “:-!!” in C code?

... effect, a way to check whether the expression e can be evaluated to be 0, and if not, to fail the build. The macro is somewhat misnamed; it should be something more like BUILD_BUG_OR_ZERO, rather than ...ON_ZERO. (There have been occasional discussions about whether this is a confusing name.) You...
https://stackoverflow.com/ques... 

Full Page

... Here's the working code. Works in desktop and mobile browsers. hope it helps. thanks for everyone responding. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www...
https://stackoverflow.com/ques... 

Is there any way to ignore INSTALL_FAILED_VERSION_DOWNGRADE on application install with the Android

It seems like the most recent Android 4.2 has introduced this error condition on installation when one attempts to install an APK with a lower version. In prior versions of Android, one would be able to install older APK's simply via adb install -r <link to APK> . For debugging purposes, I f...
https://stackoverflow.com/ques... 

Catching error codes in a shell pipe

... If you really don't want the second command to proceed until the first is known to be successful, then you probably need to use temporary files. The simple version of that is: tmp=${TMPDIR:-/tmp}/mine.$$ if ./a > $tmp.1 then if ./b <$tmp.1 >$tmp.2 ...
https://stackoverflow.com/ques... 

Why is a pure virtual function initialized by 0?

...He also states explicitly that this need not set the vtable entry to NULL, and that doing so is not the best way of implementing pure virtual functions. share | improve this answer | ...
https://stackoverflow.com/ques... 

Why does one hot encoding improve machine learning performance?

...ced that when One Hot encoding is used on a particular data set (a matrix) and used as training data for learning algorithms, it gives significantly better results with respect to prediction accuracy, compared to using the original matrix itself as training data. How does this performance increase h...
https://stackoverflow.com/ques... 

Heroku + node.js error (Web process failed to bind to $PORT within 60 seconds of launch)

... important that you use process.env.PORT and not process.env.port. – gprasant Feb 25 '14 at 14:15 ...
https://stackoverflow.com/ques... 

Where can I get a list of Ansible pre-defined variables?

...at Ansible provide some pre-defined variables that we can use in playbooks and template files. For example, the host ip address is ansible_eth0.ipv4.address. Googleing and searching the docs I cound't find a list of all available variables. Would someone list them for me? ...