大约有 8,300 项符合查询结果(耗时:0.0256秒) [XML]

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How do I parse a string to a float or int?

...n, how can I parse a numeric string like "545.2222" to its corresponding float value, 545.2222 ? Or parse the string "31" to an integer, 31 ? ...
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What is the meaning of #XXX in code comments?

...een this a lot in code, even vim marks it as a special case. #TODO and #FIXME are two other fix markers vim highlights but what does #XXX mean? ...
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How to reverse a string in Go?

... In Go1 rune is a builtin type. func Reverse(s string) string { runes := []rune(s) for i, j := 0, len(runes)-1; i < j; i, j = i+1, j-1 { runes[i], runes[j] = runes[j], runes[i] } return string(runes) } ...
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How do I calculate the date six months from the current date using the datetime Python module?

...g the datetime Python module. I am looking to calculate the date 6 months from the current date. Could someone give me a little help doing this? ...
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iPhone Navigation Bar Title text color

It seems the iOS Navigation Bar title color is white by default. Is there a way to change it to a different color? 32 Answe...
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How to download source in ZIP format from GitHub?

...ing the whole thing each time and writing over your own changes etc. A ZIP file won't let you do that. It is mostly meant for people who want to develop the source rather than people who just want to get the source one off and not make changes. But it just so happens you can get a ZIP file as well...
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What is the best way to uninstall gems from a rails3 project?

I installed all of my gems using bundler via the Gemfile. I thought (mistakenly) that if I deleted a gem from my Gemfile and ran 'bundle install' that the deleted gems would be uninstalled. I've looked at the bundler help file and, so far as I can tell, it does not have a way to uninstall gems. ...
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Node.js app can't run on port 80 even though there's no other process blocking the port

I'm running an instance of Debian on Amazon EC2 with Node.js installed. If I run the code below: 9 Answers ...
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How can I uninstall an application using PowerShell?

Is there a simple way to hook into the standard ' Add or Remove Programs ' functionality using PowerShell to uninstall an existing application ? Or to check if the application is installed? ...
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Bash command to sum a column of numbers [duplicate]

I want a bash command that I can pipe into that will sum a column of numbers. I just want a quick one liner that will do something essentially like this: ...