1.打印形状
等腰三角形
1 #!/bin/bash 2 # 打印等腰三角形 3 read -p "Please input the length: " n 4 for i in `seq 1 $n` 5 do 6 for ((j=$n;j>i;j--)) 7 do 8 echo -n " " 9 done 10 11 for m in `seq 1 $i` 12 do 13 echo -n "* " 14 done 15 echo 16 done
倒直角三角形
1 #!/bin/bash 2 #倒直角三角形 3 read -p "Please input the length: " len 4 for i in `seq 1 $len` 5 do 6 for j in `seq $i $len` 7 do 8 echo -n "* " 9 done 10 echo 11 done
直角三角形
1 #!/bin/bash 2 #直角三角形 3 read -p "Please input the length: " len 4 for i in `seq 1 $len` 5 do 6 for ((j=1;j<=$i;j++)) 7 do 8 echo -n "* " 9 done 10 echo 11 done
菱形
1 #!/bin/bash 2 #菱形 3 4 read -p "Please input the length: " n 5 6 for i in `seq 1 $n` 7 do 8 for ((j=$n;j>i;j--)) 9 do 10 echo -n " " 11 done 12 for m in `seq 1 $i` 13 do 14 echo -n "* " 15 done 16 echo 17 done 18 19 for i in `seq 1 $n` 20 do 21 for ((j=1;j<=$i;j++)) 22 do 23 echo -n " " 24 done 25 for ((k=$i;k<=$len-1;k++)) 26 do 27 echo -n "* " 28 done 29 echo 30 done