题解 | 打印等腰三角形

#!/bin/bash

read -n 1 n

for((i=$n-1;i>=0;i--))
    do
        for((j=1;j<=i;j++))
            do
                echo -n " "
            done
        for((k=1;k<=$n-i;k++))
            do
                echo -n "* "
            done
        echo ""
    done