大约有 40,000 项符合查询结果（耗时：0.0588秒） [XML]
Why does the MongoDB Java driver use a random number generator in a conditional?
I saw the following code in this commit for MongoDB's Java Connection driver , and it appears at first to be a joke of some sort. What does the following code do?
...
Can I add a UNIQUE constraint to a PostgreSQL table, after it's already created?
...
Active
Oldest
Votes
...
How to percent-encode URL parameters in Python?
...
Active
Oldest
Votes
...
Vim Insert Mode on Mac OS X
Apparently Mac keyboards don't have an Insert key (or maybe they do but I can't find it). How can I get to insert mode in vim on a Mac?
...
Reload django object from database
Is it possible to refresh the state of a django object from database? I mean behavior roughly equivalent to:
4 Answers
...
What is the 'cls' variable used for in Python classes?
Why is cls sometimes used instead of self as an argument in Python classes?
5 Answers
...
Where does Jenkins store configuration files for the jobs it runs?
I'm adding continuous integration to an EC2 project at work using Jenkins. The Jenkins machine itself is kept on an EC2 machine - one that might need to be taken offline and brought back on an entirely different EC2 instance at any point. We have a bunch of Puppet manifests allowing us to easily rei...
What is the “-d” in “npm -d install”?
...a -d argument. For example, this issue refers to doing npm -d install coffee-script . There are a few other pages that also refer to this syntax, including the install instructions for at least one npm package.
...
How can I open Windows Explorer to a certain directory from within a WPF app?
In a WPF application, when a user clicks on a button I want to open the Windows explorer to a certain directory, how do I do that?
...