lua学习之循环打印九九乘法表

 --第4题  输出99乘法表
 function PrintMulitiplyTable()
     for i = ,  do
         local res = {}
         local str = ""
         for j = , i do
             res[j] = i * j
             str = table.concat(res, " ")
         end
         print(str)
     end
 end

 PrintMulitiplyTable()