大约有 41,000 项符合查询结果（耗时：0.0532秒） [XML]
Is there a .NET equivalent to Apache Hadoop? [closed]
So, I've been looking at Hadoop with keen interest, and to be honest I'm fascinated, things don't get much cooler.
15 Ans...
Difference between dispatch_async and dispatch_sync on serial queue?
...k is finished whereas dispatch_async return after it is added to the queue and may not finished.
for this code
dispatch_async(_serialQueue, ^{ printf("1"); });
printf("2");
dispatch_async(_serialQueue, ^{ printf("3"); });
printf("4");
It may print 2413 or 2143 or 1234 but 1 always before 3
for ...
When to use Windows Workflow Foundation? [closed]
Some things are easier to implement just by hand (code), but some are easier through WF. It looks like WF can be used to create (almost) any kind of algorithm. So (theoretically) I can do all my logic in WF, but it's probably a bad idea to do it for all projects.
...
How to grep (search) committed code in the Git history
...ommit content (i.e., actual lines of source, as opposed to commit messages and the like), you need to do:
git grep <regexp> $(git rev-list --all)
git rev-list --all | xargs git grep <expression> will work if you run into an "Argument list too long" error.
If you want to limit the sea...
Bold & Non-Bold Text In A Single UILabel?
How would it be possible to include both bold and non-bold text in a uiLabel?
14 Answers
...
What is an Intent in Android?
... happen. Depending on the intent, apps or the OS might be listening for it and will react accordingly. Think of it as a blast email to a bunch of friends, in which you tell your friend John to do something, or to friends who can do X ("intent filters"), to do X. The other folks will ignore the email...
Why should I use 'li' instead of 'div'?
...or semantic correctness. HTML has the ability to express lists of things, and it helps the Google robot, screen readers, and all manner of users who don't care solely about the presentation of the site understand your content better.
...
Correct owner/group/permissions for Apache 2 site files/folders under Mac OS X?
...can put this one to rest for me? My permissions are screwed up on my sites and I'm not sure how to fix them without just slamming a recursive 777 on everything which is quite obviously incorrect.
...
What is the most ridiculous pessimization you've seen? [closed]
...ence.
Our new environment was 32-bit Sparc Solaris.
One of the guys went and changed all ints to shorts to speed up our code, since grabbing 16 bits from RAM was quicker than grabbing 32 bits.
I had to write a demo program to show that grabbing 32-bit values on a 32-bit system was faster than gra...
Disable autocomplete via CSS
...
You can use a generated id and name everytime, which is different, so the browser cannot remember this text-field and will fail to suggest some values.
This is at least the cross browser safe alternative, but I would recommend to go with the answer f...