大约有 36,020 项符合查询结果（耗时：0.0616秒） [XML]
Python speed testing - Time Difference - milliseconds
...n Python in order to speed test a section of code? I tried reading the API docs. I'm not sure I understand the timedelta thing.
...
What's the scope of a variable initialized in an if statement?
... module in which they're assigned. Control blocks like if and while blocks don't count, so a variable assigned inside an if is still scoped to a function, class, or module.
(Implicit functions defined by a generator expression or list/set/dict comprehension do count, as do lambda expressions. You c...
Coding Practices which enable the compiler/optimizer to make a faster program
... output arguments! This can be a huge help for getting around aliasing slowdowns. For example, if your code looks like
void DoSomething(const Foo& foo1, const Foo* foo2, int numFoo, Foo& barOut)
{
for (int i=0; i<numFoo, i++)
{
barOut.munge(foo1, foo2[i]);
}
}
the ...
What is __stdcall?
...the OS is calling you (as is the case here with WinMain). If the compiler doesn't know the correct calling convention then you will likely get very strange crashes as the stack will not be managed correctly.
share
...
Request Monitoring in Chrome
...liking it so far. My only complaint, however, is that the developer tools don't seem to allow you to view each ajax request. I've had it happen once where the Resources panel showed multiple requests to the same resource, but it's only done it once and never again.
...
Converting pfx to pem using openssl
...
You can use the OpenSSL Command line tool. The following commands should do the trick
openssl pkcs12 -in client_ssl.pfx -out client_ssl.pem -clcerts
openssl pkcs12 -in client_ssl.pfx -out root.pem -cacerts
If you want your file to be password protected etc, then there are additional options.
...
How to retrieve the first word of the output of a command in bash?
...
This doesn't work if the string is e.g. "firstWord, secondWord" as that awk command delimiters by space
– Roger Oba
Jun 29 '19 at 22:10
...
'ssh-keygen' is not recognized as an internal or external command
...ill have ssh-keygen.
Update 2015:
ssh-keygen.exe is part of Git For Windows, whose releases include PortableGit-2.4.3.1-2nd-release-candidate-64-bit.7z
c:\path\to\PortableGit-2.4.3.1-2nd-release-candidate-64-bit\usr\bin\ssh-keygen.exe
That means the %PATH% must include c:\path\to\PortableGit-...
Navigation in django
I've just done my first little webapp in django and I love it. I'm about to start on converting an old production PHP site into django and as part its template, there is a navigation bar.
...
Is Java RegEx case-insensitive?
In Java, when doing a replaceAll to look for a regex pattern like:
5 Answers
5
...