认证功能
#db.txt(abc:111
def:222
ghi:333)
inp_name=input('请输入你的名字: ').strip()
inp_pwd=input('请输入你的密码: ').strip()
with open(r'db.txt',mode='rt',encoding='utf-8') as f:
for line in f:
u,p=line.strip(' ').split(':')
if inp_name == u and inp_pwd == p:
print('登录成功')
break
else:
print('账号名或者密码错误')