1.2 KiB
1.2 KiB
title | localeTitle |
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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!