大约有 30,000 项符合查询结果(耗时:0.0391秒) [XML]

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What is the difference between ${var}, “$var”, and “${var}” in the Bash shell?

What the title says: what does it <em>mem>ean to encapsulate a variable in {} , "" , or "{} "? I haven't been able to find any explanations online about this - I haven't been able to refer to the<em>mem> except for using the sy<em>mem>bols, which doesn't yield anything. ...
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How can I read and parse CSV files in C++?

...oad and use CSV file data in C++. At this point it can really just be a co<em>mem><em>mem>a-deli<em>mem>ited parser (ie don't worry about escaping new lines and co<em>mem><em>mem>as). The <em>mem>ain need is a line-by-line parser that will return a vector for the next line each ti<em>mem>e the <em>mem>ethod is called. ...
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How to test if list ele<em>mem>ent exists?

I would like to test if an ele<em>mem>ent of a list exists, here is an exa<em>mem>ple 7 Answers 7 ...
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Disable Enable Trigger SQL server for a table

...like below but it has error on syntax. Could anyone pointing out the proble<em>mem>? 7 Answers ...
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How to cancel a local git co<em>mem><em>mem>it

<em>Mem>y issue is I have changed a file eg: READ<em>Mem>E, added a new line ' this for <em>mem>y testing line ' and saved the file, then I issued the following co<em>mem><em>mem>ands ...
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Rando<em>mem> / noise functions for GLSL

As the GPU driver vendors don't usually bother to i<em>mem>ple<em>mem>ent noiseX in GLSL, I'<em>mem> looking for a "graphics rando<em>mem>ization swiss ar<em>mem>y knife" utility function set, preferably opti<em>mem>ised to use within GPU shaders. I prefer GLSL, but code any language will do for <em>mem>e, I'<em>mem> ok with translating it on <em>mem>y own ...
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How do I translate an ISO 8601 dateti<em>mem>e string into a Python dateti<em>mem>e object? [duplicate]

I'<em>mem> getting a dateti<em>mem>e string in a for<em>mem>at like "2009-05-28T16:15:00" (this is ISO 8601, I believe). One hackish option see<em>mem>s to be to parse the string using ti<em>mem>e.strpti<em>mem>e and passing the first six ele<em>mem>ents of the tuple into the dateti<em>mem>e constructor, like: ...
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Using pip behind a proxy with CNTL<em>Mem>

I a<em>mem> trying to use pip behind a proxy at work. 32 Answers 32 ...
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How to display <em>mem>ultiple notifications in android

I a<em>mem> receiving only one notification and if there co<em>mem>es another notification, it replaces the previous one and here is <em>mem>y code ...
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Keep-alive header clarification

I was asked to build a site , and one of the co-developer told <em>mem>e That I would need to include the keep-alive header. 1 An...