双十一账号管理服务购买

import time

def check_login_attempts(username, attempts):
    if attempts > 5:
        print(f"ALERT: Excessive login attempts for user {username}!")
        # 这里可以添加发送警报的代码，如发送邮件或短信
    else:
        print(f"User {username} logged in successfully.")

def main():
    user_attempts = {}
    while True:
        username = input("Enter username: ")
        password = input("Enter password: ")
        
        # 这里应添加实际的验证逻辑
        if username == "admin" and password == "securepass":
            if username in user_attempts:
                user_attempts[username] += 1
            else:
                user_attempts[username] = 1
            check_login_attempts(username, user_attempts[username])
        else:
            print("Invalid credentials. Please try again.")
        
        time.sleep(1)  # 模拟延迟

if __name__ == "__main__":
    main()