python从零学习day-2 homework：模拟登陆

模拟登陆：

用户输入帐号密码进行登陆

用户信息保存在文件内

用户密码输入错误三次后锁定用户，下次再登录，检测到是这个用户也登录不了

f_i = open('user_date.txt','r')  # 用户资料
f_m = open('mange.txt','r+')  # 只存储被锁定的用户名
d = []
for line in f_i:  # 可以用dict
    line = line.strip('\n')
    b = line.split(' ')
    d.append(b)
d = dict(d)
r_i = list(d.keys())
# print(r_i)
r_p = list(d.values())
# print(r_p)
t = []
while True:
    m = []
    for line in f_m:
        line = line.strip('\n')
        m.append(line)
    # print(m)
    user_name = str(input('请输入用户名：'))
    if user_name in m:
        print('账户已锁定，请与管理员联系！')
        exit()
    elif user_name not in m and user_name not in r_i:
        print('请检查用户名及密码输入是否正确！')
        continue
    else:
        user_password = input('请输入密码：')
        if user_password == r_p[r_i.index(user_name)]:
            print('登录成功！')
            exit()
        else:
            t.append(user_name)
            while t.count(user_name) < 3 :
                print('密码错误，您还有%d次机会'%(3-t.count(user_name)))
                break
            else:
                print('账户已锁定，请与管理员联系！')
                f_m.write('\n%s'%user_name)
                break