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紧跟前面学习的步伐,坚持学习!
练习十一讲的是输入
这里的输入是通过方法:gets.chomp
# 从窗口中输入数据 print "How old are you ?" age = gets.chomp print "How tall are you?" height = gets.chomp print "How much do you weight?" weight = gets.chomp puts "So, you‘re #{age} old, #{height} tall and #{weight} heavy."
搜索有关资料最多的讨论时:gets与gets.chomp的比较,结果是:
两者在输入时,没有区别,通过实验
# 从窗口中输入数据 # change the gets.chomp to the gets print "How old are you ?" age = gets print "How tall are you?" height = gets.chomp print "How much do you weight?" weight = gets puts "So, you‘re #{age} old, #{height} tall and #{weight} heavy."
输出:
[ufindme@ufindme day5]$ ruby ex11b.rb How old are you ?112 How tall are you?223 How much do you weight?445 So, you‘re 112 old, 223 tall and 445 heavy.
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。输入的时候两者都没有区别,区别在于输出时取输入值得时候:
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。
然而有人给出的解释是:
gets 中包含了"\n" 而 gets.chomp 中不包括"\n"
标签:style blog http color ar 数据 div sp log
原文地址:http://www.cnblogs.com/ufindme/p/3956976.html