大约有 31,500 项符合查询结果(耗时:0.0403秒) [XML]

https://stackoverflow.com/ques... 

Why does ContentResolver.requestSync not trigger a sync?

...n I trigger it from the Dev Tools Sync Tester application, however when I call ContentResolver.requestSync(account, authority, bundle) from my ContentProvider, my sync is never triggered. ...
https://stackoverflow.com/ques... 

$(document).ready equivalent without jQuery

...ent if ( document.addEventListener ) { // Use the handy event callback document.addEventListener( "DOMContentLoaded", function(){ document.removeEventListener( "DOMContentLoaded", arguments.callee, false ); jQuery.ready(); }, false ); // If IE...
https://stackoverflow.com/ques... 

Why is spawning threads in Java EE container discouraged?

... It is discouraged because all resources within the environment are meant to be managed, and potentially monitored, by the server. Also, much of the context in which a thread is being used is typically attached to the thread of execution itself. If y...
https://stackoverflow.com/ques... 

How to define a function in ghci across multiple lines?

... For guards (like your example), you can just put them all on one line and it works (guards do not care about spacing) let abs n | n >= 0 = n | otherwise = -n If you wanted to write your function with multiple definitions that pattern match on the arguments, like this: fac...
https://stackoverflow.com/ques... 

Is it possible to refresh a single UITableViewCell in a UITableView?

... The OP isn't animating anything, so there's no need to call the begin/endupdates – kubi Jul 15 '13 at 17:38 2 ...
https://stackoverflow.com/ques... 

What is the _snowman param in Ruby on Rails 3 forms for?

...net Explorer (5, 6, 7 and 8) to encode its parameters as unicode. Specifically, this bug can be triggered if the user switches the browser's encoding to Latin-1. To understand why a user would decide to do something seemingly so crazy, check out this google search. Once the user has put the web-sit...
https://stackoverflow.com/ques... 

What are the special dollar sign shell variables?

... $3, ... are the positional parameters. "$@" is an array-like construct of all positional parameters, {$1, $2, $3 ...}. "$*" is the IFS expansion of all positional parameters, $1 $2 $3 .... $# is the number of positional parameters. $- current options set for the shell. $$ pid of the current shell (...
https://stackoverflow.com/ques... 

How to upgrade Eclipse for Java EE Developers?

Is there any non-painful way to upgrade an Eclipse installation? I have tried browsing the eclipse site but I cannot find an useful description. ...
https://stackoverflow.com/ques... 

How to select unique records by SQL

... answered Oct 29 '09 at 5:09 mjalldaymjallday 8,52877 gold badges4747 silver badges6868 bronze badges ...
https://stackoverflow.com/ques... 

Difference between Math.Floor() and Math.Truncate()

...seems, simply because it can round to a specific number of decimal places. All the others round to zero decimals always. For example: n = 3.145; a = System.Math.Round (n, 2, MidpointRounding.ToEven); // 3.14 b = System.Math.Round (n, 2, MidpointRounding.AwayFromZero); // 3.15 With the other...