大约有 40,700 项符合查询结果（耗时：0.0702秒） [XML]
How to save a dictionary to a file?
...
Python has the pickle module just for this kind of thing.
These functions are all that you need for saving and loading almost any object:
def save_obj(obj, name ):
with open('obj/'+ name + '.pkl', 'wb') as f:
pickle.dump(obj, f, pickle.HIGHEST_PROTOCO...
Java ArrayList - how can I tell if two lists are equal, order not mattering?
I have two ArrayList s of type Answer (self-made class).
18 Answers
18
...
Resetting remote to a certain commit
I want to discard all changes done after commit <commit-hash> .
So I did:
9 Answers
...
Visual Studio debugging “quick watch” tool and lambda expressions
...ses), with a bit of smoke and mirrors.
As such, I'm not in the least surprised that you can't use them idly - there is a lot of compiler work (and type generation behind the scenes) that supports this magic.
share
...
What is the Scala identifier “implicitly”?
I have seen a function named implicitly used in Scala examples. What is it, and how is it used?
3 Answers
...
The breakpoint will not currently be hit. No symbols have been loaded for this document in a Silverl
...
share
|
improve this answer
|
follow
|
edited Mar 1 '12 at 23:50
...
Why {} + {} is NaN only on the client side? Why not in Node.js?
While [] + [] is an empty string, [] + {} is "[object Object]" , and {} + [] is 0 . Why is {} + {} NaN?
1 Answer
...
Why is parenthesis in print voluntary in Python 2.7?
...
In Python 2.x print is actually a special statement and not a function*.
This is also why it can't be used like: lambda x: print x
Note that (expr) does not create a Tuple (it results in expr), but , does. This likely results in the confusion ...
How can I split a string with a string delimiter? [duplicate]
I have this string:
7 Answers
7
...
SecItemAdd and SecItemCopyMatching returns error code -34018 (errSecMissingEntitlement)
...m Xcode I would try to access the keychain but fail due to error -34018. This doesn't match any of the documented keychain error codes and can't be consistently reproduced. (happens maybe 30% of the time, and it's not clear to me why it happens). What makes debugging this problem very difficult is t...