# readme:
# blogger address:www.cnblogs.com/ne-zha
# ne_zha
# 要求:
# 编写登陆接口
# 1.输入用户名密码
# 2.登录成功显示欢迎信息
# 3.输错三次锁定
lock_file=open('file_lock.txt','r')
user_pass=open('username_file.txt','r')
cmd =int(input('''
登录系统输入1
退出系统输入2
请输入操作:
'''))
if cmd ==2:
exit()
elif cmd ==1:
username = input("please input your user...")
for i in range(3):
for i in lock_file.readlines():
i = i.split()
if username in i[0]:
print('对不起 %s 已锁定' % username)
exit()
match = False
for j in user_pass.readlines():
user,passwd =j.split()
if username ==user:
password =input("please input the passwd")
if password ==passwd:
print("登录成功!")
match = True
break
elif password !=passwd:
for n in range(2):
password =input("密码错误,请重新输入!")
if password ==passwd:
print("登录成功!")
match = True
break
if username !=user:
print("用户名不存在!")
exit()
if match ==False:
print("三次输入错误,账户以被锁定!")
lock_file.write('%s \n' % username)
lock_file.close()
user_pass.close()
exit()