大约有 40,000 项符合查询结果（耗时：0.0513秒） [XML]
pydot and graphviz error: Couldn't import dot_parser, loading of dot files will not be possible
...workX (e.g. this NetworkX example failed). I kept getting: global name 'dot_parser' is not defined. Your solution solved this problem.
– qtips
Aug 6 '13 at 0:41
...
Why is Scala's immutable Set not covariant in its type?
...ameter of type A due to the contravariance of functions. Set could potentially be contravariant in A, but this too causes issues when you want to do things like this:
def elements: Iterable[A]
In short, the best solution is to keep things invariant, even for the immutable data structure. You'll...
How can I remove a character from a string using Javascript?
I am so close to getting this, but it just isn't right.
All I would like to do is remove the character r from a string.
The problem is, there is more than one instance of r in the string.
However, it is always the character at index 4 (so the 5th character).
...
HashSet versus Dictionary w.r.t searching time to find if an item exists
...s for Dictionary is so fast that there is no benefit from using HashSet at all, in the OP's case.
– EtherDragon
Jul 27 '12 at 23:03
...
How to uninstall Python 2.7 on a Mac OS X 10.6.4?
... PATH variable by reverting my .bash_profile . But I also want to remove all directories, files, symlinks, and entries that got installed by the Python 2.7 install package. I've got the install package from http://www.python.org/ . What directories/files/configuration file entries do I need to re...
Validating email addresses using jQuery and regex
...EmailAddress(emailAddress) {
var pattern = /^([a-z\d!#$%&'*+\-\/=?^_`{|}~\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]+(\.[a-z\d!#$%&'*+\-\/=?^_`{|}~\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]+)*|"((([ \t]*\r\n)?[ \t]+)?([\x01-\x08\x0b\x0c\x0e-\x1f\x7f\x21\x23-\x5b\x5d-\x7e\u00A0-\uD7FF\uF900-\u...
Profiling Vim startup time
... if you want it to just print it, try vim --startuptime /dev/stdout +qall
– Capi Etheriel
Jan 15 '13 at 17:37
1
...
Is it possible to use argsort in descending order?
... this method is that ids is a view of avgDists:
>>> ids.flags
C_CONTIGUOUS : False
F_CONTIGUOUS : False
OWNDATA : False
WRITEABLE : True
ALIGNED : True
UPDATEIFCOPY : False
(The 'OWNDATA' being False indicates this is a view, not a copy)
Another way to do this is something ...
Cast Object to Generic Type for returning
...> T convertInstanceOfObject(java.lang.Object);
Code:
0: aload_0
1: areturn
2: astore_1
3: aconst_null
4: areturn
Exception table:
from to target type
0 1 2 Class java/lang/ClassCastException
public static void main(java...
How can I declare and define multiple variables in one line using C++?
I always though that if I declare these three variables that they will all have the value 0
10 Answers
...