临时变量：|x|
array=[1,23,12,41,1] array.each do |data| puts data data << data+1 end for x in 0..array.length-1 do puts array[x] end "abc".each_byte do |c| print "<%c>",c end
ruby
原文：https://www.cnblogs.com/fpcbk/p/10824022.html
