大约有 8,100 项符合查询结果(耗时:0.0237秒) [XML]

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How to test which port MySQL is running on and whether it can be connected to?

... To find a listener on a port, do this: netstat -tln You should see a line that looks like this if mysql is indeed listening on that port. tcp 0 0 127.0.0.1:3306 0.0.0.0:* LISTEN Port 3306 is MyS...
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How to change port number for apache in WAMP

I am new to WAMP server and installed it on my system but after installing it when I check it by going to localhost url like this http://localhost/ in the browser it is not working. I am getting a 404 error and blank page . ...
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Why do we need virtual functions in C++?

...ey're required: Let's say you have these two classes: class Animal { public: void eat() { std::cout << "I'm eating generic food."; } }; class Cat : public Animal { public: void eat() { std::cout << "I'm eating a rat."; } }; In your main function: Animal *ani...
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Using group by on multiple columns

I understand the point of GROUP BY x . 2 Answers 2 ...
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How does C compute sin() and other math functions?

I've been poring through .NET disassemblies and the GCC source code, but can't seem to find anywhere the actual implementation of sin() and other math functions... they always seem to be referencing something else. ...
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Diff Algorithm? [closed]

I've been looking like crazy for an explanation of a diff algorithm that works and is efficient. 5 Answers ...
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Compare two objects in Java with possible null values

I want to compare two strings for equality when either or both can be null . 12 Answers ...
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Is Java Regex Thread Safe?

I have a function that uses Pattern#compile and a Matcher to search a list of strings for a pattern. 5 Answers ...
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How to prove that a problem is NP complete?

I have problem with scheduling. I need to prove that the problem is NP complete. What can be the methods to prove it NP complete? ...
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Is there a __CLASS__ macro in C++?

... The closest thing there's is to call typeid(your_class).name() - but this produces compiler specific mangled name. To use it inside class just typeid(*this).name() share | ...