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Ruby Caesar 密码解释

转载 作者:太空宇宙 更新时间:2023-11-03 17:44:55 25 4
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此代码运行良好,但有人可以解释一下吗?我是 Ruby 编程的新手。这是代码:

def caesar_cipher (string, number)
caesar_string = ""

string.scan (/./) do |i|
if ("a".."z").include? (i.downcase) # Identify letters only.
number.times {i = i.next}
end
caesar_string << i[-1]
end
return caesar_string


end


print "What would you like to encrypt?"
text = gets.chomp

puts caesar_cipher( text, 5 )

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