大约有 34,900 项符合查询结果（耗时：0.0481秒） [XML]
Correct way to write line to file?
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JohnsywebJohnsyweb
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Generating a unique machine id
...ted Jun 5 '15 at 11:53
Jabberwocky
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answered Sep 22 '08 at 13:48
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C# DateTime.Now precision
... you call DateTime.Now/UtcNow in rapid succession, it seems to give you back the same value for a longer-than-expected interval of time, rather than capturing more precise millisecond increments.
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Ways to eliminate switch in code [closed]
... switch (typeof(animal)) {
case "dog":
echo animal.bark();
break;
case "cat":
echo animal.meow();
break;
}
}
becomes this:
foreach (var animal in zoo) {
echo animal.speak();
}
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What is the purpose of fork()?
In many programs and man pages of Linux, I have seen code using fork() . Why do we need to use fork() and what is its purpose?
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What is the best alternative IDE to Visual Studio [closed]
As I've only ever used Visual Studio for .NET development, I would like to expand my horizons and see what else there is on offer as an alternative to it. So what in your opinion is the best alternative to Visual Studio? Is there a viable alternative?
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How do I include negative decimal numbers in this regular expression?
... match negative numbers as well by this regular expression? This regex works fine with positive values, but I want it to also allow negative values e.g. -10, -125.5 etc.
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How can I perform a reverse string search in Excel without using VBA?
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This one is tested and does work (based on Brad's original post):
=RIGHT(A1,LEN(A1)-FIND("|",SUBSTITUTE(A1," ","|",
LEN(A1)-LEN(SUBSTITUTE(A1," ","")))))
If your original strings could contain a pipe "|" character, then replace both in the above wi...
C# “as” cast vs classic cast [duplicate]
...eption is thrown. With the as method, it results in null, which can be checked for, and avoid an exception being thrown.
Also, you can only use as with reference types, so if you are typecasting to a value type, you must still use the "classic" method.
Note:
The as method can only be used for typ...
Styling multi-line conditions in 'if' statements? [closed]
Sometimes I break long conditions in if s onto several lines. The most obvious way to do this is:
30 Answers
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