#!/usr/bin/env python3
# -*- coding: utf-8 -*-

"""
九九乘法表程序
打印完整的9x9乘法表
"""

def print_multiplication_table():
    """打印九九乘法表"""
    print("九九乘法表：")
    print("=" * 50)

    # 打印表头
    print("   ", end="")
    for i in range(1, 10):
        print(f"{i:4}", end="")
    print()
    print("-" * 50)

    # 打印乘法表内容
    for i in range(1, 10):
        print(f"{i} |", end="")
        for j in range(1, 10):
            print(f"{i*j:4}", end="")
        print()

    print("=" * 50)

def print_triangle_multiplication_table():
    """打印三角形格式的九九乘法表"""
    print("\n三角形格式九九乘法表：")
    print("=" * 30)

    for i in range(1, 10):
        for j in range(1, i + 1):
            print(f"{j}×{i}={i*j:2}", end="  ")
        print()

    print("=" * 30)

if __name__ == "__main__":
    print_multiplication_table()
    print_triangle_multiplication_table()