ruby - Ruby 中的 Gets.chomp() 用户输入错误

Question

所以这是我的代码。这是不言自明的。

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."

我的代码输出如下。

$  C:/Ruby200/bin/ruby.exe ex11.rb
11
11
11
How old are you? How tall are you?How much do you weigh?So, you're 11 old, 11 tall and 11 heavy.

这可能是一个非常简单的错误，但如果您能指出这一点，我将不胜感激。

Answer 1

我认为您的问题是：“在所有输入之后，我的所有提示都会一次打印出来。这是怎么回事？”。那我给你一个答案:)

print不会在字符串中添加换行符。并且 STDOUT 不会刷新，直到它有一条完整的线。简单修复：替换print为puts（添加换行符）

puts "How old are you? "
age = gets.chomp()
puts "How tall are you?"
height = gets.chomp()
puts "How much do you weigh?"
weight = gets.chomp()
puts "So, you're #{age} old, #{height} tall and #{weight} heavy."