大约有 47,000 项符合查询结果(耗时:0.0696秒) [XML]

https://stackoverflow.com/ques... 

What is a smart pointer and when should I use one?

...of the object being pointed to. There is no single smart pointer type, but all of them try to abstract a raw pointer in a practical way. Smart pointers should be preferred over raw pointers. If you feel you need to use pointers (first consider if you really do), you would normally want to use a sma...
https://stackoverflow.com/ques... 

.NET HashTable Vs Dictionary - Can the Dictionary be as fast?

...d people talking about the generic advantages of the Dictionary which I totally agree with, which leads the boxing and unboxing advantage for a slight performance gain. ...
https://stackoverflow.com/ques... 

PostgreSQL - max number of parameters in “IN” clause?

...ArrayOpExpr from IN/NOT IN, but this is only * possible if the inputs are all scalars (no RowExprs) and there is a * suitable array type available. If not, we fall back to a boolean * condition tree with multiple copies of the lefthand expression. * Also, any IN-list items that contain Vars are...
https://stackoverflow.com/ques... 

Animated GIF in IE stopping

...or me. After some more research I came across this workaround, and it actually does work. Here is the gist of it: function showProgress() { var pb = document.getElementById("progressBar"); pb.innerHTML = '<img src="./progress-bar.gif" width="200" height ="40"/>'; pb.style.displa...
https://stackoverflow.com/ques... 

What happens if you don't commit a transaction to a database (say, SQL Server)?

...ou don't COMMIT or ROLLBACK a transaction, it's still "running" and potentially holding locks. If your client (application or user) closes the connection to the database before committing, any still running transactions will be rolled back and terminated. ...
https://stackoverflow.com/ques... 

A valid provisioning profile for this executable was not found for debug mode

...ovisioning portal. Solution: 1) In Xcode, Goto --> Build --> clean all targets. 2) In "Groups & Files" -->Target --> expand it --> right click your app and select Clean "your app" 3) Goto->Window-->Organizer 4) In the Devices tab on the left, select your iphone 5) In t...
https://stackoverflow.com/ques... 

Mvn install or Mvn package

...ow if I modified any java files then do I need to do Run as -> Mvn install or Mvn package ? 8 Answers ...
https://stackoverflow.com/ques... 

The builds tools for v120 (Platform Toolset = 'v120') cannot be found

... So either you change the project settings to use toolset v110, or you install Visual Studio 2013 on this machine and use VS2013 to compile it. share | improve this answer | ...
https://stackoverflow.com/ques... 

Format a date using the new date time API

...in JavaScript or DateTime in Perl) are based on the concept of a universal all-purpose unique temporal type (in German there is the poetic expression "eierlegende Wollmilchsau"). In this design there cannot be an unsupported field. But the price is high: Many time problems cannot be adequately handl...
https://stackoverflow.com/ques... 

Issue pushing new code in Github

...s were rejected because the remote contains work that you do not have locally. You may want to find to follow this advice: You may want to first merge the remote changes (e.g., 'git pull') before pushing again. That is: git pull # Fix any merge conflicts, if you have a `README.md` local...