Gets.chomp无法正常工作

Question

我正在做第11次学习Ruby艰难之路的练习。我必须得到这个：

How old are you? 35
How tall are you? 6'2"
How much do you weigh? 180lbs
So, you're 35 old, 6'2" tall and 180lbs heavy.

写这个：

print "How old are you? "
age = gets.chomp()
print "How tall are you? "
height = gets.chomp()
print "How much do you weigh? "
weight = gets.chomp()

puts "So, you're #{age} old, #{height} tall and #{weight} heavy."

但我明白了：

How old are you? 
How tall are you? 
How much do you weigh? 
So, you're  old,  tall and  heavy.

这意味着gets.chomp无效，而且我什么都不懂。

Answer 1

在运行程序后出现提示时，您应该输入值，而不仅仅是输入：

# ⇓   prompt ⇓   ⇓⇓ YOUR INPUT!!! 
How old are you? 35

Sidenote ：chomp之后的括号是多余的，而不是ruby惯用语。