active = None
#程序执行的标识符
def verification(username):"""验证用户是否锁定"""locked_users = []
with open("locked_file") as locked_f:for line in locked_f:
locked_user,locked_pwd = line.split(":")
locked_users.append(locked_user)
print(locked_users)if username in locked_users:
print("对不起，你的用户名已经被锁定，请联系管理员！")else:
active = Truereturn active
def is_registered(username):"""验证用户是否注册，注册就让用户登录，未注册让用户选择重新输入或者注册"""users = {}
with open("active_file","r+") as f:for active_line in f:
user,pwd = active_line.split(":")
users[user] = pwdif username in users.keys():
test_num = 0while test_num < 3:
user_pwd = input("请输入您的密码：")if user_pwd == users[username]:
print("welcome back，have a good time!")return Falseelse:
test_num += 1else:
#用户输入三次以上锁定用户，使用的是while...else...方法
print("对不起，你输入的次数过多，你的用户已经被锁定，请联系管理员！")
mes = "\n" + username + ":" + users[username]
with open("locked_file","a") as f1:
f1.write(mes)return Falseelse:
print("您输入的用户名不存在，请按照下面的提示选择！")
print("注册：请输入1\n登录：请输入2")
num = input("请输入你的选择：")if num == "1":
register_name = input("请输入你要注册的用户名：")while True:
register_pwd = input("请输入你的密码：")
register_pwd2 = input("请再次输入你的密码：")if register_pwd == register_pwd2:breakelse:
print("您输入的密码不对，请重新输入")
message = "\n" + register_name + ":" + register_pwd
print("Thank for your registing,have a good time!")
with open("active_file","a") as f_obj:
f_obj.write(message)return False
elif num == "2":
user_name = input("请重新输入你的用户名：")
verification(user_name)if __name__ == "__main__":
username = input("请输入你的用户名：")
active = verification(username)while active:
active = is_registered(username)
