大约有 47,000 项符合查询结果（耗时：0.0307秒） [XML]
How to len(generator()) [duplicate]
...o you can use them in loop. But they don't contain any elements, so asking for the length of a generator is like asking for the length of a function.
if functions in Python are objects, couldn't I assign the length to a
variable of this object that would be accessible to the new generator?
...
How to make a cross-module variable?
...
I don't endorse this solution in any way, shape or form. But if you add a variable to the __builtin__ module, it will be accessible as if a global from any other module that includes __builtin__ -- which is all of them, by default.
a.py contains
print foo
b.py contains
...
Check if a class has a member function of a given signature
I'm asking for a template trick to detect if a class has a specific member function of a given signature.
16 Answers
...
Proper way to return JSON using node or Express
...hat response is a string too, if you want to send the response prettified, for some awkward reason, you could use something like JSON.stringify(anObject, null, 3)
It's important that you set the Content-Type header to application/json, too.
var http = require('http');
var app = http.createServer(fu...
Class method decorator with self arguments?
...es how the internal function _impl can access self to manipulate that self for whatever purpose. I needed to build a simple method decorator that incremented a self.id on a subset of the methods in a class, and only those methods in a class that had the "@" decoration syntax applied to it. That Syn...
How do I get the real .height() of a overflow: hidden or overflow: scroll div?
...'m aware of .height() and innerHeight() , but none of them does the job for me in this case. The thing is that in this case I have a div that is overflown width a overflow: scroll and the div has a fixed height.
...
Count how many files in directory PHP
...cause this is cute, but I can imagine it being fairly confusing/unreadable for most PHP devs. I would go with one of the approaches in the other answers.
– user428517
Oct 9 '12 at 16:10
...
How to base64 encode image in linux bash / shell
...blems to store it in variable so test="$(cat DSC_0251.JPG | base64)" works for me.
– dash00
Jun 4 '13 at 13:21
3
...
Java: parse int value from a char
...
@KevinVanRyckegem thank you! I was looking for why - '0' worked...I thought it was some deep magic in how Java interpreted chars or whatever...this truly was a case of me over complicating something...
– scoots
May 21 '18 at 20:3...
What does the restrict keyword mean in C++?
...ny C++ compilers
! A hint only, so may do nothing and still be conforming
A restrict-qualified pointer (or reference)...
! ...is basically a
promise to the compiler that for the
scope of the pointer, the target of the pointer will only
be accessed through that ...