大约有 44,000 项符合查询结果(耗时:0.0751秒) [XML]

https://stackoverflow.com/ques... 

Best practices for styling HTML emails [closed]

...ewsletter. I've learned that many email clients ignore linked stylesheets, and many others (including Gmail) ignore CSS block declarations altogether. Are inline style attributes my only choice? What are the best practices for styling HTML emails? ...
https://stackoverflow.com/ques... 

Differences between hard real-time, soft real-time, and firm real-time?

I have read the definitions for the different notions of real-time , and the examples provided for hard and soft real-time systems make sense to me. But, there is no real explanation or example of a firm real-time system. According to the link above: ...
https://stackoverflow.com/ques... 

Unique (non-repeating) random numbers in O(1)?

I'd like to generate unique random numbers between 0 and 1000 that never repeat (i.e. 6 doesn't show up twice), but that doesn't resort to something like an O(N) search of previous values to do it. Is this possible? ...
https://stackoverflow.com/ques... 

Calendar returns wrong month [duplicate]

... Months are indexed from 0 not 1 so 10 is November and 11 will be December. share | improve this answer | follow | ...
https://stackoverflow.com/ques... 

DTO and DAO concepts and MVC [closed]

1) Why do we use DTO and DAO , and when should we use them. I am developing a GUI Java software to do with inserting, editing, deleting data. But I am struggling to distinguish between DTO/DAO and Model , View , Controller (MVC) Structure? Are they similar, which is better to use when i...
https://stackoverflow.com/ques... 

How do I stop Skype from using HTTP or HTTPS ports 80 and 443? [closed]

I installed the Apache web server on my Windows 7 machine and I'm unable to start it because Skype.exe is already using HTTP port 80 and HTTPS port 443. ...
https://stackoverflow.com/ques... 

Sublime text 2 - find and replace globally ( all files and in all directories )

Is there any way to find and replace text string automatically in all folder's files ? 2 Answers ...
https://stackoverflow.com/ques... 

Differences between strong and weak in Objective-C

...eference to it. Once that is no longer the case, the object gets destroyed and your weak property will automatically get set to nil. The most frequent use cases of weak references in iOS are: delegate properties, which are often referenced weakly to avoid retain cycles, and subviews/controls of a ...
https://stackoverflow.com/ques... 

How can I access my localhost from my Android device?

I'm able to access my laptop web server using the Android emulator, I'm using 10.0.2.2:portno works well. 39 Answers ...
https://stackoverflow.com/ques... 

UnboundLocalError on local variable when reassigned after first use

The following code works as expected in both Python 2.5 and 3.0: 12 Answers 12 ...