大约有 45,000 项符合查询结果(耗时:0.0625秒) [XML]

https://stackoverflow.com/ques... 

R memory management / cannot allocate vector of size n Mb

...to a minimum when you need to make objects of this size. Use gc() to clear now unused memory, or, better only create the object you need in one session. If the above cannot help, get a 64-bit machine with as much RAM as you can afford, and install 64-bit R. If you cannot do that there are many o...
https://stackoverflow.com/ques... 

How to listen for changes to a MongoDB collection?

... Replica Set, all of the MongoDB actions are logged to an operations log (known as the oplog). The oplog is basically just a running list of the modifications made to the data. Replicas Sets function by listening to changes on this oplog and then applying the changes locally. Does this sound famil...
https://stackoverflow.com/ques... 

How to copy Java Collections list

...a deep copy, the List, via either mechanism, would have to have intricate knowledge of the underlying type. In the case of Strings, which are immutable in Java (and .NET for that matter), you don't even need a deep copy. In the case of MySpecialObject, you need to know how to make a deep copy of it ...
https://stackoverflow.com/ques... 

How to fix “Referenced assembly does not have a strong name” error?

...sembly to my Visual Studio 2005 project (which is strongly named). I'm now getting the error: 14 Answers ...
https://stackoverflow.com/ques... 

How to set breakpoints in inline Javascript in Google Chrome?

... The tab is called Sources instead of Scripts now. – CoderDennis Aug 30 '12 at 21:57 1 ...
https://stackoverflow.com/ques... 

Angularjs: 'controller as syntax' and $watch

... No as I know, but it's perfectly fine. $scope for you is a kind of service which supplies these kind of methods. – Roy Miloh Jun 6 '14 at 10:09 ...
https://stackoverflow.com/ques... 

Clear the entire history stack and start a new activity on Android

...hould not do that. :) Edit: As per @Ben Pearson's comment, for API <=10 now one can use IntentCompat class for the same. One can use IntentCompat.FLAG_ACTIVITY_CLEAR_TASK flag to clear task. So you can support pre API level 11 as well. ...
https://stackoverflow.com/ques... 

In Clojure 1.3, How to read and write a file

I'd like to know the "recommended" way of reading and writing a file in clojure 1.3 . 6 Answers ...
https://stackoverflow.com/ques... 

How do I clone a subdirectory only of a Git repository?

...ut doesn't check them out. Then do: git config core.sparseCheckout true Now you need to define which files/folders you want to actually check out. This is done by listing them in .git/info/sparse-checkout, eg: echo "some/dir/" >> .git/info/sparse-checkout echo "another/sub/tree" >> ....
https://stackoverflow.com/ques... 

Set UILabel line spacing

...SAttributedString's old attributedStringWithString did the same thing, but now that is being deprecated. For historical reasons, here's my original answer: Short answer: you can't. To change the spacing between lines of text, you will have to subclass UILabel and roll your own drawTextInRect, crea...