大约有 23,000 项符合查询结果（耗时：0.0338秒） [XML]
How do you set, clear, and toggle a single bit?
...
Active
Oldest
Votes
...
How do I get the YouTube video ID from a URL?
...
Active
Oldest
Votes
1
2
Next
...
Converting XML to JSON using Python?
...
61
There is no "one-to-one" mapping between XML and JSON, so converting one to the other necessari...
What's the fastest way to merge/join data.frames in R?
.... GrothendieckG. Grothendieck
194k1414 gold badges166166 silver badges283283 bronze badges
...
how to use sed, awk, or gawk to print only what is matched?
...
mouvicielmouviciel
61.1k1010 gold badges100100 silver badges133133 bronze badges
...
ASP.NET MVC 4 Custom Authorize Attribute with Permission Codes (without roles)
...
Active
Oldest
Votes
...
Optimistic vs. Pessimistic locking
I understand the differences between optimistic and pessimistic locking. Now could someone explain to me when I would use either one in general?
...