大约有 44,000 项符合查询结果（耗时：0.0583秒） [XML]
Use 'import module' or 'from module import'?
...use import module or from module import . I've just started with Python and I'm trying to start off with best practices in mind.
...
Completion block for popViewController
...tion:
[CATransaction begin];
[CATransaction setCompletionBlock:^{
// handle completion here
}];
[self.navigationController popViewControllerAnimated:YES];
[CATransaction commit];
The completion block will be called as soon as the animation used by popViewControllerAnimated: ends. This funct...
Node.js, can't open files. Error: ENOENT, stat './path/to/file'
...u run node folder/app.js. The only exception to this is require('./file') and that is only possible because require exists per-module and thus knows what module it is being called from.
To make a path relative to the script, you must use the __dirname variable.
var path = require('path');
path.j...
How to track down a “double free or corruption” error
...You can set this from gdb by using the set environment MALLOC_CHECK_ 2 command before running your program; the program should abort, with the free() call visible in the backtrace.
see the man page for malloc() for more information
...
【解决】scrapyd启动job时报错：exceptions.TypeError: __init__() got an ...
【解决】scrapyd启动job时报错：exceptions.TypeError: __init__() got an unexpected keyword argument '_job'进入项目spiders目录, 修改 spider py 文件（你自己的spider的主文件）：def __init__(self):改为：def __init__(self, *args, **kwargs):最后不要忘了重新部署一...
What tools are there for functional programming in C?
...ional programming in C ( not C++). Obviously, C is a procedural language and doesn't really support functional programming natively.
...
Checking if a double (or float) is NaN in C++
...
According to the IEEE standard, NaN values have the odd property that comparisons involving them are always false. That is, for a float f, f != f will be true only if f is NaN.
Note that, as some comments below have pointed out, not all compilers ...
Javascript how to split newline
I'm using jquery, and I have a textarea. When I submit by my button I will alert each text separated by newline.
How to split my text when there is a newline?
...
How do I setup a SSL certificate for an express.js server?
...correct signature. connect() is simply an alias for connect.createServer() and therefore so is express() (which probably does some extra initialization, but the result is still a function appropriate for use as a request handler).
– ebohlman
Aug 6 '12 at 1:08
...
Quickest way to convert a base 10 number to any base in .NET?
I have and old(ish) C# method I wrote that takes a number and converts it to any base:
12 Answers
...