大约有 42,000 项符合查询结果(耗时:0.0453秒) [XML]

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What's the difference between a proxy server and a reverse proxy server? [closed]

What is the difference between a proxy server and a reverse proxy server? 21 Answers 2...
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What does character set and collation mean exactly?

I can read the MySQL documentation and it's pretty clear. But, how does one decide which character set to use? On what data does collation have an effect? ...
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Explain the encapsulated anonymous function syntax

Can you explain the reasoning behind the syntax for encapsulated anonymous functions in JavaScript? Why does this work: (function(){})(); but this doesn't: function(){}(); ? ...
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Most efficient way to reverse a numpy array

Believe it or not, after profiling my current code, the repetitive operation of numpy array reversion ate a giant chunk of the running time. What I have right now is the common view-based method: ...
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CORS - What is the motivation behind introducing preflight requests?

Cross-origin resource sharing is a mechanism that allows a web page to make XMLHttpRequests to another domain (from wikipedia ). ...
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Why must we define both == and != in C#?

The C# compiler requires that whenever a custom type defines operator == , it must also define != (see here ). 13 Answe...
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What is a word boundary in regex?

I am using Java regexes in Java 1.6 (to parse numeric output, among other purposes) and cannot find a precise definition of \b ("word boundary"). I had assumed that -12 would be an "integer word" (matched by \b\-?\d+\b ) but it appears that this does not work. I'd be grateful to know of ways ...
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Why are joins bad when considering scalability?

Why are joins bad or 'slow'. I know i heard this more then once. I found this quote 16 Answers ...
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In a Git repository, how to properly rename a directory?

I think it should work to copy the directory to be renamed to a new directory with desired name, and delete the old directory , and git add , git commit and push everything. But is this the best way? ...
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What are the differences between Perl, Python, AWK and sed? [closed]

just want to know what are the main differences among them? and the power of each language (where it's better to use it). 5...