大约有 42,000 项符合查询结果（耗时：0.0632秒） [XML]
When is assembly faster than C?
...actually be used to generate more performant code are both extremely rare and require expert knowledge of and experience with assembly.
...
INNER JOIN vs LEFT JOIN performance in SQL Server
I've created SQL command that uses INNER JOIN on 9 tables, anyway this command takes a very long time (more than five minutes). So my folk suggested me to change INNER JOIN to LEFT JOIN because the performance of LEFT JOIN is better, despite what I know. After I changed it, the speed of query got si...
Importing a GitHub project into Eclipse
...
As mentioned in Alain Beauvois's answer, and now (Q4 2013) better explained in
Eclipse for GitHub
EGit 3.x manual (section "Starting from existing Git Repositories")
Eclipse with GitHub
EGit tutorial
Copy the URL from GitHub and select in Eclipse from the me...
comparing sbt and Gradle [closed]
I am diving into Scala and noticed sbt. I have been quite happy with Gradle in java/groovy projects, and I know there's a scala plugin for Gradle.
...
jQuery vs document.querySelectorAll
I heard several times that jQuery's strongest asset is the way it queries and manipulates elements in the DOM: you can use CSS queries to create complex queries that would be very hard to do in regular javascript .
However , as far as I know, you can achieve the same result with document.querySele...
Boolean operators && and ||
According to the R language definition , the difference between & and && (correspondingly | and || ) is that the former is vectorized while the latter is not.
...
List all files and directories in a directory + subdirectories
I want to list every file and directory contained in a directory and subdirectories of that directory. If I chose C:\ as the directory, the program would get every name of every file and folder on the hard drive that it had access to.
...
What is the difference between Left, Right, Outer and Inner Joins?
...
Simple Example: Lets say you have a Students table, and a Lockers table. In SQL, the first table you specify in a join, Students, is the LEFT table, and the second one, Lockers, is the RIGHT table.
Each student can be assigned to a locker, so there is a LockerNumber column in...
How can I selectively merge or pick changes from another branch in Git?
...
You use the cherry-pick command to get individual commits from one branch.
If the change(s) you want are not in individual commits, then use the method shown here to split the commit into individual commits. Roughly speaking, you use git rebase -i to g...
Why is no one using make for Java?
...Java project that I've seen either uses Maven or Ant. They are fine tools and I think just about any project can use them. But what ever happened to make ? It's used for a variety of non-Java projects and can easily handle Java. Sure you have to download make.exe if you use Windows, but Ant and...