大约有 40,000 项符合查询结果（耗时：0.0459秒） [XML]
How to tell if JRE or JDK is installed
I have one computer that I intentionally installed JDK on. I have another computer with JRE, for, among other things, testing. However, when I got a java application working on this computer, and then tried it on another, it complained that JDK was required. How can I check if JDK was somehow instal...
How can I get a precise time, for example in milliseconds in Objective-C?
...
Actually this is precise enough for the general use case.
– logancautrell
Jul 2 '12 at 12:30
4
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What are the “standard unambiguous date” formats for string-to-date conversion in R?
...te (+1). However, the error message "standard unambiguous format" is ironically ambiguous, to which the 23 previous questions attest. A more direct error message like, "format not recognized, see documentation" might improve user experience. Also, I don't believe "01/01/2000" is ISO-8601 ("2000-01-0...
How to fix the uninitialized constant Rake::DSL problem on Heroku?
...ixed my problems and I didn't know what was going on. (Using the rails installer on windows and deploying to heroku, as a complete beginner.)
– Jack V.
Jun 14 '11 at 22:46
1
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Is there a __CLASS__ macro in C++?
Is there a __CLASS__ macro in C++ which gives the class name similar to __FUNCTION__ macro which gives the function name
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Check if all elements in a list are identical
... = next(iterator)
except StopIteration:
return True
return all(first == rest for rest in iterator)
One-liner:
def checkEqual2(iterator):
return len(set(iterator)) <= 1
Also one-liner:
def checkEqual3(lst):
return lst[1:] == lst[:-1]
The difference between the 3 versi...
warning: implicit declaration of function
...s to declare function prototype in header.
Example
main.h
#ifndef MAIN_H
#define MAIN_H
int some_main(const char *name);
#endif
main.c
#include "main.h"
int main()
{
some_main("Hello, World\n");
}
int some_main(const char *name)
{
printf("%s", name);
}
Alternative with one file...
Is there a way to chain multiple value converters in XAML?
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@DLeh This is not really elegant as is doesn't work. It provides all converters with final target type instead of correct target type...
– Aleksandar Toplek
Sep 7 '15 at 10:53
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How to delete (not cut) in Vim?
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Use the "black hole register", "_ to really delete something: "_d.
Use "_dP to paste something and keep it available for further pasting.
For the second question, you could use <C-o>dw. <C-o> is used to execute a normal command without leaving ...
_=> what does this underscore mean in Lambda expressions?
What does an lambda expression like _=> expr mean?
5 Answers
5
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