大约有 40,000 项符合查询结果(耗时:0.0314秒) [XML]

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How do I apply CSS3 transition to all properties except background-position?

I'd like to apply a CSS transition to all properties apart from background-position. I tried to do it this way: 6 Answers ...
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How do I get SUM function in MySQL to return '0' if no values are found?

Say I have a simple function in MySQL: 4 Answers 4 ...
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initialize a vector to zeros C++/C++11

I know in C++11 they added the feature to initialize a variable to zero as such 2 Answers ...
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Using bitwise OR 0 to floor a number

A colleague of mine stumbled upon a method to floor float numbers using a bitwise or: 6 Answers ...
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Generate array of all letters and digits

Using ruby, is it possible to make an array of each letter in the alphabet and 0-9 easily? 7 Answers ...
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Nested JSON objects - do I have to use arrays for everything?

Is there any way to have nested objects in JSON so I don't have to make arrays out of everything? For my object to be parsed without error I seem to need a structure like this: ...
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How to remove gaps between subplots in matplotlib?

The code below produces gaps between the subplots. How do I remove the gaps between the subplots and make the image a tight grid? ...
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How to crop an image using PIL?

I want to crop image in the way by removing first 30 rows and last 30 rows from the given image. I have searched but did not get the exact solution. Does somebody have some suggestions? ...
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Is MATLAB OOP slow or am I doing something wrong?

I'm experimenting with MATLAB OOP , as a start I mimicked my C++'s Logger classes and I'm putting all my string helper functions in a String class, thinking it would be great to be able to do things like a + b , a == b , a.find( b ) instead of strcat( a b ) , strcmp( a, b ) , retrieve first...
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Regular expressions in C: examples?

I'm after some simple examples and best practices of how to use regular expressions in ANSI C. man regex.h does not provide that much help. ...