我有我的变量，height和distance. 它们由用户输入。我想将它们分开并将结果转换为一个新变量ratio.
print "How high are you?"
height = gets.chomp
print "How far are you from the landing strip?"
distance = gets.chomp
ratio = distance.to_f / height
当我尝试运行它时，它只是告诉我
`/': String can't be coerced into Float (TypeError)
有什么帮助吗？