大约有 42,000 项符合查询结果（耗时：0.0720秒） [XML]
How to concatenate two IEnumerable into a new IEnumerable?
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345
Yes, LINQ to Objects supports this with Enumerable.Concat:
var together = first.Concat(second...
Best way to create unique token in Rails?
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335
-- Update --
As of January 9th, 2015. the solution is now implemented in Rails 5 ActiveRecord...
How do I calculate square root in Python?
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Merlin
17.3k3131 gold badges100100 silver badges181181 bronze badges
answered Mar 7 '12 at 2:50
smessingsmessin...
“x not in y” or “not x in y”
...is(notin)
2 0 LOAD_CONST 1 ('ham')
3 LOAD_CONST 2 ('spam and eggs')
6 COMPARE_OP 7 (not in)
9 POP_TOP
10 LOAD_CONST 0 (None)
13 RETURN_VALUE
>&...
How do I ALTER a PostgreSQL table and make a column unique?
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3 Answers
3
Active
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Round a double to 2 decimal places [duplicate]
If the value is 200.3456 , it should be formatted to 200.34 .
If it is 200 , then it should be 200.00 .
13 Answers
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Find size of Git repository
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UPDATE git 1.8.3 introduced a more efficient way to get a rough size: git count-objects -vH (see answer by @VonC)
For different ideas of "complete size" you could use:
git bundle create tmp.bundle --all
du -sh tmp.bundle
Close (but not...