shell编写乘法表程序

放

 程序：（两种方法）

#!/bin/bash
     for((x=1;x<=9;x++)
     do 
        for((y=1;y<=$x;y++))
        do
          printf "$x*$y=$(($x*$y))\t"
        done
          printf "\n"
        done

#!/bin/bash
    for x in `seq 9`
    do 
      for y in `seq $x`
      do
       printf "$x*$y=$(($x*$y))\t"
      done
       printf "\n"
      done