大约有 46,000 项符合查询结果(耗时:0.0700秒) [XML]

https://stackoverflow.com/ques... 

RuntimeError on windows trying python multiprocessing

I am trying my very first formal python program using Threading and Multiprocessing on a windows machine. I am unable to launch the processes though, with python giving the following message. The thing is, I am not launching my threads in the main module. The threads are handled in a separate modu...
https://stackoverflow.com/ques... 

Devise Secret Key was not set

... I ran bundle update this morning and started getting the same error. I added it as a line in config/initializers/devise.rb and the error was fixed. This seems to be the commit which introduced it. ...
https://stackoverflow.com/ques... 

How to echo shell commands as they are executed

In a shell script, how do I echo all shell commands called and expand any variable names? 13 Answers ...
https://stackoverflow.com/ques... 

Refresh image with a new one at the same url

...ppend the current timestamp automatically when you are creating the image, and it will make the browser look again for the image instead of retrieving the one in the cache. share | improve this answ...
https://stackoverflow.com/ques... 

How to detect if JavaScript is disabled?

...ection. As an alternative it is possible to set a cookie using JavaScript, and then test for that cookie using server-side scripting upon subsequent page views. However this would not be suitable for deciding what content to deliver as it would not be able to distinguish visitors without the cookie...
https://stackoverflow.com/ques... 

Why does the arrow (->) operator in C exist?

... I'll interpret your question as two questions: 1) why -> even exists, and 2) why . does not automatically dereference the pointer. Answers to both questions have historical roots. Why does -> even exist? In one of the very first versions of C language (which I will refer as CRM for "C Refe...
https://stackoverflow.com/ques... 

How to create a printable Twitter-Bootstrap page

I'm using Twitter-Bootstrap and I need to be able to print the page the way it looks on the browser. I'm able to print other pages made with Twitter-Bootstrap just fine but I can't seem to print my page that uses purely Twitter-Bootstrap. Am I missing a tag somewhere? ...
https://stackoverflow.com/ques... 

Timeout for python requests.get entire response

I'm gathering statistics on a list of websites and I'm using requests for it for simplicity. Here is my code: 19 Answers ...
https://stackoverflow.com/ques... 

Adjust UIButton font size to width

...tWidth = YES; should do the work on its own if you are using Auto-Layout and have set a constraint on the button's width. The other options (minimum scale factor, number of lines etc) can still be used to customize further according to your needs, but are not required. ...
https://stackoverflow.com/ques... 

Check if EditText is empty. [closed]

I have 5 EditTexts in android for users to input. I would like to know if I could have a method for checking all the 5 EditTexts if they are null. Is there any way to do this?? ...