1.打印出矩形
#!/bin/bash
for ((i=0;i<5s;i++));do //控制行数 for ((j=0;j<5;j++));do //控制列数 echo -n "*" //打印 done echo //换行 done 2.打印出等腰三角形
#!/bin/bash
for ((i=0;i<5;i++));do for ((j=i+1;j<5;j++));do echo -n " " done for ((k=0;k<=i;k++));do echo -n "* " done echo done 3.三角形
#!/bin/bash
read -p "input line:" line o=$((($line+1)/2)) for((i=1;i<=$line;i++)); do if [ $i -le $o ]; then for ((j=1;j<=$i;j++)); do echo -n "" done else for ((k=1;k<=$(($line-$i+1));k++));do echo -n "" done fi echo done 4.矩形
#!/bin/bash read -p "input line:" line o=$((($lixne+1)/2)) echo $o for((i=1;i<=$line;i++)); do if [ $i -le $o ]; then for ((j=1;j<=$(($o-$i));j++)); do echo -n " " done for((k=1;k<=$((2*$i-1));k++));do echo -n " * " done echo else for ((m=1;m<=$(($i-$o));m++));do echo -n " " done for((n=1;n<=$((2*($line-i+1)-1)); n++));do echo -n " * " done echovivim fi echo done
