大约有 45,000 项符合查询结果（耗时：0.0665秒） [XML]
What does -> mean in Python function definitions?
...
421
It's a function annotation.
In more detail, Python 2.x has docstrings, which allow you to atta...
Printing HashMap In Java
...
Ken ChanKen Chan
59.7k2121 gold badges108108 silver badges131131 bronze badges
...
How to implement a queue with three stacks?
...a.edu/webs/people/okasaki/jfp95.ps and it seems that he actually uses only 2 stacks for the O(1) version that has lazy evaluation. The problem is that it's really based on lazy evaluation. The question is if it can be translated to a 3-stack algorithm without lazy evaluation.
UPDATE: Another relate...
How can I make an entire HTML form “readonly”?
...
12 Answers
12
Active
...
setting an environment variable in virtualenv
...
Update
As of 17th May 2017 the README of autoenv states that direnv is probably the better option and implies autoenv is no longer maintained.
Old answer
I wrote autoenv to do exactly this:
https://github.com/kennethreitz/autoenv
...
How to round the corners of a button
...
|
edited Sep 2 at 21:47
halfer
18.1k1010 gold badges7373 silver badges146146 bronze badges
...
How do I 'git diff' on a certain directory?
...
126
Provide a path (myfolder in this case) and just run:
git diff myfolder/
...
Declaring variables inside loops, good practice or bad practice?
... Here, retainValue is still valid; tmpValue no longer */
}
For question #2:
The variable is allocated once, when the function is called. In fact, from an allocation perspective, it is (nearly) the same as declaring the variable at the beginning of the function. The only difference is the scope: th...
What does immutable mean?
...t that str references.
If the string was mutable, does that
mean the 2nd alert() would return oo
as well?
Technically, no, because the substring method returns a new string. Making an object mutable, wouldn't change the method. Making it mutable means that technically, you could make it ...