Ruby：用于字符串插值和注释的语法(Ruby: syntax for string interpolation and commenting)

Ruby：用于字符串插值和注释的语法(Ruby: syntax for string interpolation and commenting)

这个问题有很多类似的问题，但我认为没有人真的有我需要的答案。

根据我的理解，任何在其之前有#东西都会成为评论，如下所示：

puts "not a comment" # puts "in a comment"

但是当涉及到字符串插值时，您可以说：

puts "time is #{Time.now}"

并且#{Time.now}中的#{Time.now}不会开始评论它后面写的任何内容。

这是怎么回事？

There are a lot of similar questions to this one but i think none really had the answer i was in need of.

From what i perceived, anything that has a # preceding it becomes a comment, as in:

puts "not a comment" # puts "in a comment"

but when it come to string interpolation, you can say:

puts "time is #{Time.now}"

and the # at #{Time.now} doesn't start commenting whatever is written after it.

How is it so?

最满意答案

在这种情况下，＃符号用引号括起来，并作为字符串的一部分进行分析，而不是作为注释。

The # sign in this case is encased in quotation marks, and is parsed as part of the string, not as a comment.