题解 | #打印等腰三角形#

#!/bin/bash

# 读取用户输入的正整数n
read -p "" n

# 循环打印等腰三角形
for ((i=1; i<=n; i++)); do
    # 打印前导空格
    for ((j=n-i; j>0; j--)); do
        echo -n " "
    done
    # 打印星号和空格组合
    for ((k=1; k<=i; k++)); do
        echo -n "* "
    done
    # 换行
    echo
done