大约有 42,000 项符合查询结果(耗时:0.0712秒) [XML]

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Returning a boolean from a Bash function

... 338 Use 0 for true and 1 for false. Sample: #!/bin/bash isdirectory() { if [ -d "$1" ] then...
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Requests — how to tell if you're getting a 404

... 320 Look at the r.status_code attribute: if r.status_code == 404: # A 404 was issued. Demo:...
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What exactly does the post method do?

... Yair Kukielka 8,87811 gold badge2929 silver badges3636 bronze badges answered Dec 12 '12 at 12:56 TalhaTalha 12k44 gold badges45...
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Store select query's output in one array in postgres

...dited Oct 26 '17 at 16:59 user8839064 1733 bronze badges answered Jun 19 '11 at 11:46 Denis de BernardyDenis d...
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How do I load an HTML page in a using JavaScript?

... | edited Jan 21 '19 at 13:14 Neuron 3,54333 gold badges2323 silver badges4040 bronze badges answered J...
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SQL how to increase or decrease one for a int column in one command

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How can you tell when a layout has been drawn?

... 396 You can add a tree observer to the layout. This should return the correct width and height. on...
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How to access a mobile's camera from a web app?

...LittleBobbyTables - Au Revoir 29.5k1212 gold badges9393 silver badges110110 bronze badges answered Nov 21 '12 at 8:56 AshishAshish ...
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Can you put two conditions in an xslt test attribute?

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What is the easiest way to duplicate an activerecord record?

... To get a copy, use the clone (or dup for rails 3.1+) method: # rails < 3.1 new_record = old_record.clone #rails >= 3.1 new_record = old_record.dup Then you can change whichever fields you want. ActiveRecord overrides the built-in Object#clone to give you a new ...