大约有 40,000 项符合查询结果(耗时:0.0582秒) [XML]

https://stackoverflow.com/ques... 

Ask for User Permission to Receive UILocalNotifications in iOS 8

...serNotificationCategory() notificationCategory.identifier = "INVITE_CATEGORY" notificationCategory.setActions([replyAction], forContext: UIUserNotificationActionContext.Default) //registerting for the notification. application.registerUserNotificationSettings(UIUserN...
https://stackoverflow.com/ques... 

Flat file databases [closed]

... Well, what is the nature of the flat databases. Are they large or small. Is it simple arrays with arrays in them? if its something simple say userprofiles built as such: $user = array("name" => "dubayou", "age" => 20, "websites" => array("dubayou.com",...
https://stackoverflow.com/ques... 

How do I use itertools.groupby()?

I haven't been able to find an understandable explanation of how to actually use Python's itertools.groupby() function. What I'm trying to do is this: ...
https://stackoverflow.com/ques... 

Nested attributes unpermitted parameters

... Person . I want a form that can create the Bill and its children Dues all in one page. I am trying to create a form using nested attributes, similar to ones in this Railscast . ...
https://stackoverflow.com/ques... 

What's the best way to trim std::string?

I'm currently using the following code to right-trim all the std::strings in my programs: 46 Answers ...
https://stackoverflow.com/ques... 

Difference between TCP and UDP?

...TCP is a connection oriented stream over an IP network. It guarantees that all sent packets will reach the destination in the correct order. This imply the use of acknowledgement packets sent back to the sender, and automatic retransmission, causing additional delays and a general less efficient tra...
https://stackoverflow.com/ques... 

Delete an element from a dictionary

... use an an already constructed dict without a single item as **kwargs, some_function(**{k:v for k,v in some_dict.items() if k not 'some_key'}) – Cole Nov 19 '17 at 21:14 ...
https://stackoverflow.com/ques... 

How to create an infinite loop in Windows batch file?

...it rem ** can be stopped with a syntax error call :stop ) :stop call :__stop 2>nul :__stop () creates a syntax error, quits the batch This could be useful if you need a really infinite loop, as it is much faster than a goto :loop version because a for-loop is cached completely once at sta...
https://stackoverflow.com/ques... 

How to call an async method from a getter or setter?

...ll get populated without blocking the UI, when getTitle() returns. string _Title; public string Title { get { if (_Title == null) { Deployment.Current.Dispatcher.InvokeAsync(async () => { Title = await getTitle(); }); } return _Title; } ...
https://stackoverflow.com/ques... 

Get current time as formatted string in Go?

... All the other response are very miss-leading for somebody coming from google and looking for "timestamp in go"! YYYYMMDDhhmmss is not a "timestamp". To get the "timestamp" of a date in go (number of seconds from january 1970...