大约有 20,358 项符合查询结果(耗时:0.0240秒) [XML]

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Does a dot have to be escaped in a character class (square brackets) of a regular expression?

A dot . in a regular expression matches any single character. In order for regex to match a dot, the dot has to be escaped: \. ...
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Setting different color for each series in scatter plot on matplotlib

Suppose I have three data sets: 7 Answers 7 ...
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MySQL get the date n days ago as a timestamp

In MySQL, how would I get a timestamp from, say 30 days ago? 3 Answers 3 ...
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composer: How to find the exact version of a package?

Suppose I'm writing a library A, that depends on another library, monolog for instance. 5 Answers ...
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Crontab - Run in directory

I would like to set a job to run daily in the root crontab. But I would like it to execute it from a particular directory so it can find all the files it needs, since the application has a bunch of relative paths. ...
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How to add lines to end of file on Linux

I want to add the following 2 lines... 1 Answer 1 ...
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Serializing an object to JSON

How can I serialize an object to JSON in JavaScript? 3 Answers 3 ...
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Check if a given Type is an Enum

I am writing a JsonConverter for Json.NET which should allow me to convert any enum's to a string value defined by a [Description] attribute. ...
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How to disable textarea resizing?

I need to disable textarea horizontal resize. Sometimes I want to allow vertical resize on the textarea. 5 Answers ...
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How does Rails keep track of which migrations have run for a database?

According to Rails doc: http://guides.rubyonrails.org/migrations.html 1 Answer 1 ...