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gets 获取输入

Ruby中gets和gets.chomp()

gets和gets.chomp()都表示读入用户的输入并用于输出,但两者还是有所不同,其中gets是得到的内容后,在输出时后面接着换行;而gets.chmop()得到的内容输出时后面不带空格和换行。

例如:

print "How old are you? " # input 29yrs
age = gets.chomp()
print "How tall are you? " # input 168cm
height = gets.chomp()
print "How much do you weigh? " # input 62kg
weight = gets
puts "So, you're #{age} old, #{height} tall and #{weight} heavy."

运行结果:

So, you're 29yrs old, 168cm tall and 62kg
 heavy.

GetoptLong