大约有 45,000 项符合查询结果（耗时：0.0393秒） [XML]
Read entire file in Scala?
... I'm too late to the party, but I'd hate for people not to know they can do "io.File("/etc/passwd").slurp" in trunk.
– psp
Aug 26 '09 at 3:48
28
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Disable a method in a ViewSet, django-rest-framework
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@SunnySydeUp Just trying this now and it seems the router does generate the route for a list view, but it 404s because the ViewSet doesn't know how to handle the request. Is this what you expected?
– Steve Jalim
Jul ...
How do I detect unsigned integer multiply overflow?
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I see you're using unsigned integers. By definition, in C (I don't know about C++), unsigned arithmetic does not overflow ... so, at least for C, your point is moot :)
With signed integers, once there has been overflow, undefined behaviour (UB) has occurred and your program can do anything (...
String concatenation vs. string substitution in Python
... large boosts in performance..."
If performance matters, this is good to know.
However, performance problems I've seen have never come down to string operations. I've generally gotten in trouble with I/O, sorting and O(n2) operations being the bottlenecks.
Until string operations are the perfor...
Can I use a binary literal in C or C++?
...'ve seen a number of embedded-systems compilers that support it. I don't know any particular reason it shouldn't be a standard language feature.
– supercat
Aug 1 '11 at 21:34
5
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Unresolved Import Issues with PyDev and Eclipse
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I tried this and now I can't start my DEV server. How do I replace the file?
– Lee Loftiss
May 2 '19 at 13:49
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How to sort two lists (which reference each other) in the exact same way
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Now they're converted to Numpy arrays twice ;)
– BenB
Jul 8 '15 at 19:32
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Best way to store date/time in mongodb
... @Thilo: MongoDB has no special 'datetime' object as far as I know. It uses the JavaScript Date type, which is stored in BSON form.
– Niels van der Rest
Sep 24 '10 at 8:04
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Python nonlocal statement
...: 2
# outer: 1
# global: 0
To this, using nonlocal, where inner()'s x is now also outer()'s x:
x = 0
def outer():
x = 1
def inner():
nonlocal x
x = 2
print("inner:", x)
inner()
print("outer:", x)
outer()
print("global:", x)
# inner: 2
# outer: 2
# global...
How to install therubyracer gem on 10.10 Yosemite?
... Thank's, it work for me, just for copy/paste guy like me, we are now at gem install pkg/libv8-3.16.14.7-x86_64-darwin-14.gem
– Christophe Dufour
Oct 21 '14 at 9:58
2
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