大约有 41,100 项符合查询结果(耗时:0.0793秒) [XML]

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Newline in markdown table?

... 364 Use <br> to force a line break within a table cell. Markdown Extra and MultiMarkdown al...
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Using awk to print all columns from the nth to the last

... | edited Apr 8 '15 at 13:01 fedorqui 'SO stop harming' 212k7373 gold badges432432 silver badges485485 bronze badges ...
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Is APC compatible with PHP 5.4 or PHP 5.5?

... 163 +500 Zend OPC...
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Regex how to match an optional character

... You could improve your regex to ^([0-9]{5})+\s+([A-Z]?)\s+([A-Z])([0-9]{3})([0-9]{3})([A-Z]{3})([A-Z]{3})\s+([A-Z])[0-9]{3}([0-9]{4})([0-9]{2})([0-9]{2}) And, since in most regex dialects, \d is the same as [0-9]: ^(\d{5})+\s+([A-Z]?)\s+([A-Z])(\d{3})(\d{3})([A-Z]{3})([A-Z]{3})\s+([A-Z])\d{3}(...
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Is it possible to use 'else' in a list comprehension? [duplicate]

... 337 The syntax a if b else c is a ternary operator in Python that evaluates to a if the condition ...
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Common elements in two lists

... 163 Use Collection#retainAll(). listA.retainAll(listB); // listA now contains only the elements whi...
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Iterating through a list in reverse order in java

... answered Jan 20 '10 at 15:34 John FeminellaJohn Feminella 271k3939 gold badges320320 silver badges337337 bronze badges ...
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How to convert an array of strings to an array of floats in numpy?

... list_of_strings)) (or equivalently, use a list comprehension). (In Python 3, you'll need to call list on the map return value if you use map, since map returns an iterator now.) However, if it's already a numpy array of strings, there's a better way. Use astype(). import numpy as np x = np.array...
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What is the iPad user agent?

... Mozilla/5.0(iPad; U; CPU iPhone OS 3_2 like Mac OS X; en-us) AppleWebKit/531.21.10 (KHTML, like Gecko) Version/4.0.4 Mobile/7B314 Safari/531.21.10 share | im...
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Validate phone number with JavaScript

...ctly. It validates that the phone number is in one of these formats: (123) 456-7890 or 123-456-7890 26 Answers ...