freeCodeCamp/guide/chinese/ruby/ruby-comments/index.md

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title	localeTitle
Ruby Comments	Ruby评论

Ruby评论

注释是代码中的注释行，在运行时被忽略（这意味着它们在源代码中可见但在运行程序时不会打印出来）。

在Ruby中，单行注释以#字符开头并延伸到行尾。评论可以是自己的行或代码。

puts "Learning to code is fun!" 
 
 # I am a single line comment. 
 
 puts "Ruby is a great language!" # Me too - I am a trailing comment. 

执行时，上面的程序产生以下内容：

Learning to code is fun! 
 Ruby is a great language! 

您可以通过在=begin和=end之间添加注释来执行多行注释。 =begin和=end必须从行的最开始开始， =end必须在它自己的一行上。

=begin 
 I am a multi-line comment 
 and I can be as long as I please. 
 See, still going! 
 =end 
 
 puts "Hello World!" 
 
 =begin It's ok to start the comment on the same 
 line as "=begin" (though it's more readable if 
 you don't) but you can't put a space or any 
 text before "=begin" or "=end" and you can't put 
 anything on the same line after "=end". 
 =end 

执行时，上面的程序产生以下内容：

Hello World!