大约有 40,000 项符合查询结果（耗时：0.0774秒） [XML]
Setting DEBUG = False causes 500 Error
...erver), and there is no error info in Apache error log and it will run normally when I change debug to True .
31 Answer...
When do I use fabs and when is it sufficient to use std::abs?
...
In C++, it's always sufficient to use std::abs; it's overloaded for all the numerical types.
In C, abs only works on integers, and you need fabs for floating point values. These are available in C++ (along with all of the C library), but there's no need to use them.
...
How do I properly clean up Excel interop objects?
...rop in C# ( ApplicationClass ) and have placed the following code in my finally clause:
41 Answers
...
How to concatenate a std::string and an int?
I thought this would be really simple but it's presenting some difficulties. If I have
23 Answers
...
Is there a way to measure how sorted a list is?
...er according to some ordering < on the set of T's.
From Wikipedia:
Formally, let A(1), A(2), ..., A(n) be a sequence of n numbers.If i < j and A(i) > A(j), then the pair (i,j) is called an inversion of A.
The inversion number of a sequence is one common measure of its sortedness.Formally, ...
Where to place $PATH variable assertions in zsh?
...'t listed in any zsh documentation I can find.
This turns out to be partially incorrect: /etc/profile may be sourced by zsh. However, this only occurs if zsh is "invoked as sh or ksh"; in these compatibility modes:
The usual zsh startup/shutdown scripts are not executed. Login shells source /e...
Get array of object's keys
...keys are unordered).
This is an ES5 feature. This means it works in all modern browsers but will not work in legacy browsers.
The ES5-shim has a implementation of Object.keys you can steal
share
|
...
Border around specific rows in a table?
...at can put a border around specific rows in a table. Yes, I know I'm not really supposed to use tables for layout but I don't know enough CSS to completely replace it yet.
...
Automatically create an Enum based on values in a database lookup table?
How do I automatically create an enum and subsequently use its values in C# based on values in a database lookup table (using enterprise library data layer)?
...
Doing a cleanup action just before Node.js exits
...rocess.on('exit') and in any other case(SIGINT or unhandled exception) to call process.exit()
process.stdin.resume();//so the program will not close instantly
function exitHandler(options, exitCode) {
if (options.cleanup) console.log('clean');
if (exitCode || exitCode === 0) console.log(ex...