day11作业

#一：今日作业：
#1、编写文件copy工具
copy_path = input("请输入复制的文件路径：").strip()
paste_path = input("请输入粘贴的文件路径：").strip()
with open(r'{}'.format(copy_path),mode='rt',encoding='utf-8') as f1,
        open(r'{}'.format(paste_path),mode='wt',encoding='utf-8') as f2:
    res = f1.read()
    f2.write(res)
# 2、编写登录程序，账号密码来自于文件
user_name = input("请输入账号：").strip()
pwd = input("请输入密码：").strip()
with open("user.txt",mode='rt',encoding='utf8') as f:
    for line in f:
        username,userpwd = line.strip().split(":")
        if user_name == username and userpwd == pwd:
            print("登陆成功")
            break
    else:
        print("账号密码错误")
# 3、编写注册程序，账号密码来存入文件
user_name = input("请输入账号：").strip()
user_pwd = input("请输入密码：").strip()
with open("user.txt",mode='at',encoding='utf-8') as f:
    f.write('{}:{}
'.format(user_name,user_pwd))

# 二：周末综合作业：
# 2.1：编写用户登录接口
# 1、输入账号密码完成验证，验证通过后输出"登录成功"
# 2、可以登录不同的用户
# 3、同一账号输错三次锁定，（提示：锁定的用户存入文件中，这样才能保证程序关闭后，该用户仍然被锁定）

user_pwd = {"egon":"root123", "alex":"13579", "yu":"root"}
user_info = {"egon":0, "alex":0, "yu":0}
user_pwd = {}
user_info = {}
with open("user.txt", mode='rt', encoding='utf8') as f:
    for line in f:
        username, userpwd = line.strip().split(":")
        user_pwd.setdefault(username, userpwd)
        user_info.setdefault(username, 0)

while True:
    username = input("请输入账号：").strip()
    pwd = input("请输入密码：").strip()

    with open('locked.txt', 'r', encoding='utf-8') as f1:
        all = f1.read()
        a = all.split()
        flag = a[0]
        name = a[1]
    if username not in user_pwd:
        print("用户不存在")
    elif username == name and flag == 'lock':
        print("你的账号已被锁定")
        break
    elif (user_pwd.get(username) != pwd):
        user_info[username] += 1
        print("密码错误")
        if user_info.get(username) >= 3:
            user_info[username] = "lock"
            print("你的账号已被锁定")
            with open("locked.txt",mode='wt',encoding='utf-8') as f2:
                f2.write("lock "+username)
            break
    else:
        print("登陆成功")
        break

# 2.2：编写程序实现用户注册后，可以登录，
# 提示：
while True:
    msg = """
    0 退出
    1 登录
    2 注册
    """
    print(msg)
    cmd = input('请输入命令编号>>: ').strip()
    if not cmd.isdigit():
        print('必须输入命令编号的数字，傻叉')
        continue
    if cmd == '0':
        break
    elif cmd == '1':
        user_pwd = {}
        user_info = {}
        with open("user.txt", mode='rt', encoding='utf8') as f:
            for line in f:
                username, userpwd = line.strip().split(":")
                user_pwd.setdefault(username, userpwd)
                user_info.setdefault(username, 0)
        while True:
            username = input("请输入账号：").strip()
            pwd = input("请输入密码：").strip()

            with open('locked.txt', 'r', encoding='utf-8') as f1:
                all = f1.read()
                a = all.split()
                flag = a[0]
                name = a[1]
            if username not in user_pwd:
                print("用户不存在")
            elif username == name and flag == 'lock':
                print("你的账号已被锁定")
                break
            elif (user_pwd.get(username) != pwd):
                user_info[username] += 1
                print("密码错误")
                if user_info.get(username) >= 3:
                    user_info[username] = "lock"
                    print("你的账号已被锁定")
                    with open("locked.txt", mode='wt', encoding='utf-8') as f2:
                        f2.write("lock " + username)
                    break
            else:
                print("登陆成功")
                break
        break
    elif cmd == '2':
        user_name = input("请输入注册账号：").strip()
        user_pwd = input("请输入密码：").strip()
        with open("user.txt",mode='at',encoding='utf-8') as f:
            f.write('{}:{}
'.format(user_name,user_pwd))
        print("注册成功")
    else:
        print('输入的命令不存在')

# 思考：上述这个if分支的功能否使用其他更为优美地方式实现