大约有 40,740 项符合查询结果(耗时:0.0428秒) [XML]

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Set transparent background using ImageMagick and commandline prompt

Suppose you have any image (PNG or JPG). This image has a white background and I need to make this background transparent. ...
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Best practice for creating millions of small temporary objects

What are the "best practices" for creating (and releasing) millions of small objects? 13 Answers ...
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Batch file to delete files older than N days

I am looking for a way to delete all files older than 7 days in a batch file. I've searched around the web, and found some examples with hundreds of lines of code, and others that required installing extra command line utilities to accomplish the task. ...
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How to check if click event is already bound - JQuery

I am binding a click event with a button: 13 Answers 13 ...
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Storing Data in MySQL as JSON

I thought this was a n00b thing to do. And, so, I've never done it. Then I saw that FriendFeed did this and actually made their DB scale better and decreased latency. I'm curious if I should do this. And, if so, what's the right way to do it? ...
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What is (functional) reactive programming?

I've read the Wikipedia article on reactive programming . I've also read the small article on functional reactive programming . The descriptions are quite abstract. ...
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Remove all special characters except space from a string using JavaScript

I want to remove all special characters except space from a string using JavaScript. 11 Answers ...
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How to Execute a Python File in Notepad ++?

I prefer using Notepad ++ for developing, 20 Answers 20 ...
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How do you log all events fired by an element in jQuery?

I'd like to see all the events fired by an input field as a user interacts with it. This includes stuff like: 12 Answers ...
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Where can I learn how to write C code to speed up slow R functions? [closed]

What's the best resource for learning how to write C code for use with R? I know about the system and foreign language interfaces section of R extensions, but I find it pretty hard going. What are good resources (both online and offline) for writing C code for use with R? ...