小型货币转换器[关闭]

Question

我开始制作货币转换器。代码是这样的：

print"What currency would you like to convert from?(british,yen):"
currency_in = gets.to_s
print"What currency would you like to convert to?(british,yen):"
currency_out = gets.to_s
print"How much would you like to convert?:"
to_c = gets.to_f
if (currency_in == "british") && (currency_out == "yen")
  puts to_c * 181.69 + "Y"
elsif (currency_in == "yen") && (currency_out == "british")
  puts to_c * 0.01 
else
  puts"no such currency"
end

但它并没有像我预期的那样工作。当我输入british 然后yen 或其他方式时，程序会继续输入"no such currency"。

Answer 1

gets 将在字符串末尾包含一个换行符 ("\n")。您可以使用chomp 删除它：

currency_in = gets.chomp
print "What currency would you like to convert to?(british,yen):"
currency_out = gets.chomp

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