大约有 23,000 项符合查询结果(耗时:0.0488秒) [XML]

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CSS: 100% font size - 100% of what?

...account, either through the use of completely relative units or JavaScript-based dynamic resizing. – Triynko Feb 17 '15 at 22:54 1 ...
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How to sum a variable by group

...umber of groups. Both data,table and dplyr will be quite a lot faster than base functions, however (can well be 100-1000 times faster for some operations). Also see here – talat Jan 23 '15 at 14:50 ...
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BaseException.message deprecated in Python 2.6

I get a warning that BaseException.message is deprecated in Python 2.6 when I use the following user-defined exception: 8 A...
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Use of var keyword in C#

...ou don't use a text search to obtain class usage, you get the IDE to do it based on it's parse tree or however else it identifies the types of objects. Since we're talking about static typing, this will find everything but the anonymous types. – Dustman Sep 18 ...
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Difference between doseq and for in Clojure

...q [x [1 2 3]] (println x)) 1 2 3 nil If you want to build a new sequence based on other sequences, use for. If you want to do side-effects (printing, writing to a database, launching a nuclear warhead, etc) based on elements from some sequences, use doseq. ...
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How can I generate a unique ID in Python? [duplicate]

I need to generate a unique ID based on a random value. 8 Answers 8 ...
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XML Schema: Element with attributes containing only text?

...name="AttrElement"> <xs:simpleContent> <xs:extension base="xs:string"> <xs:attribute name="value" type="xs:string"> </xs:attribute> </xs:extension> </xs:simpleContent> </xs:complexType> ...
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Where is Vagrant saving changes to the VM?

... Vagrant imports the base box which is located at ~/.vagrant.d/boxes/, like you said. This is where the base boxes are kept. It uses it to start a VM from the clean state. When importing a VM, the responsibility of where to store data files and V...
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Side-by-side plots with ggplot2

....arrange(plot1, plot2, ncol=2) This is useful when the two plots are not based on the same data, for example if you want to plot different variables without using reshape(). This will plot the output as a side effect. To print the side effect to a file, specify a device driver (such as pdf, png,...
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WPF Command Line

...rm the logic: protected override void OnStartup(StartupEventArgs e) { base.OnStartup(e); if ( /* test command-line params */ ) { /* do stuff without a GUI */ } else { new Window1().ShowDialog(); } this.Shutdown(); } ...