紅寶石<, <=, >，> =值比較代碼

Question

意圖是根據年齡顯示消息。

puts "Age, please" 

value = gets.chomp 
if value < 21 
    puts "Here you cannot to buy alchohol" 
end 

puts "You can buy all the alchohol you want" 

這段代碼中缺少的部分是什麼？

Answer 1

如果您通過gets獲得value,value是字符串。

使用value.to_i

puts "Age, please" 

value = gets 
value = Integer(value) rescue 0 

if value < 21 
    puts "Here you cannot to buy alchohol" 
else 
    puts "You can buy all the alchohol you want" 
end