用户登录验证
#!/usr/bin/env python
# -* coding utf-8 *-
name=input('input your login name')
pswd=input('input your password')
if name=='bruce' and pswd=='123':
print ('welcome bruce')
else:print('login failed')
tag 的方式,改进版
n=0
tag=True
while tag:
if n==3:
print("too many times")
break
name_=input('input your name>> :')
pwd=input ('input your pswd>>>')
if name_=='bruce' and pwd=="123":
print("login successful")
while tag:
cmd=input('pls input your commond').strip()
# cmd=cmd.strip()
if len(cmd)==0:continue
print('%s is running' %cmd)
if cmd=="q":
tag=False
break
else:
print('login failure')
n+=1