注释是Ruby代码中的注释行,在运行时会被忽略。一行注释以#字符开头,它们从#延伸到该行的末尾,如下所示-
#!/usr/bin/ruby -w # This is a single line comment. puts "Hello, Ruby!"
执行后,上述程序会产生以下输出-
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Hello, Ruby!
您可以使用=begin 和=end 语法注释多行,如下所示-
#!/usr/bin/ruby -w puts "Hello, Ruby!" =begin This is a multiline comment and con spwan as many lines as you like. But =begin and =end should come in the first line only. =end
执行后,上述程序会产生以下输出-
链接:https://www.learnfk.comhttps://www.learnfk.com/ruby/ruby-comments.html
来源:LearnFk无涯教程网
Hello, Ruby!
确保尾随注释与代码之间的距离足够远,并且易于区分。如-
@counter # keeps track times page has been hit @siteCounter # keeps track of times all pages have been hit
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