这里有什么问题?我不知道?
print "Type the first digit, hit enter."
first_digit = gets.chomp
print "Now type the second digit you wish to add."
second_digit = gets.chomp
answer = second_digit + first digit
print "Here is your answer:#{answer}"
sleep 5
答案 0 :(得分:2)
您可能希望将这些字符串转换为整数:
first_digit = gets.chomp.to_i
另外,你在这里忘了一个下划线:
answer = second_digit + first digit
^ right here