Ruby 实现 九九乘法表

require 'byebug'
as = 1..9
 
as.each do |a|
 (1..a).each do |b|
 a = a.to_i
 b = b.to_i
 #byebug
 # s 用作对齐
 s = a*b >= 10 ? " " : " "
 print " #{b} * #{a} = #{a*b}#{s}"
 end
 puts " \n"
end

作者:StephenZzz原文地址:https://segmentfault.com/a/1190000040838087

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