import time
# 假设的用户数据
USER_DATA = {
    'username': 'admin',
    'password': '1234'
}
# 尝试次数限制
MAX_ATTEMPTS = 3

def login():
    attempts = 0
    while attempts < MAX_ATTEMPTS:
        # 从命令行获取用户名和密码
        username = input("请输入用户名:")
        password = input("请输入密码:")

        # 验证用户名和密码
        if USER_DATA['username'] == username and USER_DATA['password'] == password:
            print("登录成功")
            return True
        else:
            print("登录失败，用户名或密码错误")
            attempts += 1
            print(f"您还有 {MAX_ATTEMPTS - attempts} 次尝试机会。")

    print("登录失败次数过多，账户被锁定。")
    return False

if __name__ == "__main__":
    login()