大约有 45,000 项符合查询结果(耗时:0.1013秒) [XML]

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Using .NET, how can you find the mime type of a file based on the file signature not the extension

...MimeFromData. From the documentation MIME type detection, or "data sniffing," refers to the process of determining an appropriate MIME type from binary data. The final result depends on a combination of server-supplied MIME type headers, file extension, and/or the data itself. Usually, only th...
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PHP - Check if two arrays are equal

I'd like to check if two arrays are equal. I mean: same size, same index, same values. How can I do that? 15 Answers ...
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Test for non-zero length string in Bash: [ -n “$var” ] or [ “$var” ]

I've seen Bash scripts test for a non-zero length string in two different ways. Most scripts use the -n option: 6 Answers...
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How to programmatically close a JFrame

What's the correct way to get a JFrame to close, the same as if the user had hit the X close button, or pressed Alt + F4 (on Windows)? ...
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“std::endl” vs “\n”

...m will write out the correct thing for the system compiled for. The only difference is that std::endl flushes the output buffer, and '\n' doesn't. If you don't want the buffer flushed frequently, use '\n'. If you do (for example, if you want to get all the output, and the program is unstable), us...
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Converting many 'if else' statements to a cleaner approach [duplicate]

My code here detects if the mimeType is equals to some MIME type, if it is, it will do a certain conversion 7 Answers ...
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Checking for the correct number of arguments

How do i check for the correct number of arguments (one argument). If somebody tries to invoke the script without passing in the correct number of arguments, and checking to make sure the command line argument actually exists and is a directory. ...
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Override intranet compatibility mode IE8

... (to clarify: It works for the document mode, but not browser mode) – codeulike Oct 20 '11 at 17:50 21 ...
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Display help message with python argparse when script is called without any arguments

... is triggered. For example, test.py --blah will print the help message too if --blah isn't a valid option. If you want to print the help message only if no arguments are supplied on the command line, then perhaps this is still the easiest way: import argparse import sys parser=argparse.ArgumentPa...
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How do I use the conditional operator (? :) in Ruby?

...C (the parenthesis are not required). It's an expression that works like: if_this_is_a_true_value ? then_the_result_is_this : else_it_is_this However, in Ruby, if is also an expression so: if a then b else c end === a ? b : c, except for precedence issues. Both are expressions. Examples: puts (...