大约有 47,000 项符合查询结果(耗时:0.0718秒) [XML]

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best way to preserve numpy arrays on disk

I am looking for a fast way to preserve large numpy arrays. I want to save them to the disk in a binary format, then read them back into memory relatively fastly. cPickle is not fast enough, unfortunately. ...
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Convert between UIImage and Base64 string

Does anyone know how to convert a UIImage to a Base64 string, and then reverse it? 24 Answers ...
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How can I get zoom functionality for images?

Is there a common way to show a big image and enable the user to zoom in and out and pan the image? 13 Answers ...
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Remove CSS class from element with JavaScript (no jQuery) [duplicate]

Could anyone let me know how to remove a class on an element using JavaScript only? Please do not give me an answer with jQuery as I can't use it, and I don't know anything about it. ...
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How do I get Fiddler to stop ignoring traffic to localhost?

...ddler to monitor HTTP Requests & Responses in Internet Explorer it ignores all traffic directed to http://localhost . 14 A...
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Select n random rows from SQL Server table

I've got a SQL Server table with about 50,000 rows in it. I want to select about 5,000 of those rows at random. I've thought of a complicated way, creating a temp table with a "random number" column, copying my table into that, looping through the temp table and updating each row with RAND() , and ...
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How to print time in format: 2009‐08‐10 18:17:54.811

What's the best method to print out time in C in the format 2009‐08‐10 
18:17:54.811 ? 7 Answers ...
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How can I do time/hours arithmetic in Google Spreadsheet?

How do I do time/hour arithmetic in a Google spreadsheet? 11 Answers 11 ...
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Inspecting standard container (std::map) contents with gdb

Supposing to have something like this: 7 Answers 7 ...
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How do I pause my shell script for a second before continuing?

I have only found how to wait for user input. However, I only want to pause so that my while true doesn't crash my computer. ...