import random
 
def coin_toss():
    """模拟掷硬币，返回正面或反面"""
    return random.choice(['正面', '反面'])
 
def main():
    times = 100  # 直接设置掷硬币次数为100
 
    # 执行掷硬币并统计结果
    heads_count = 0
    for _ in range(times):
        result = coin_toss()
        if result == '正面':
            heads_count += 1
 
    tails_count = times - heads_count
 
    # 计算比例
    heads_ratio = heads_count / times * 100
    tails_ratio = tails_count / times * 100
 
    # 输出结果
    print(f"\n掷了 {times} 次硬币：")
    print(f"正面出现 {heads_count} 次 ({heads_ratio:.2f}%)")
    print(f"反面出现 {tails_count} 次 ({tails_ratio:.2f}%)")
 
if __name__ == "__main__":
    main()

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