Python 练习1，,#!/usr/bin

Python 练习1，,#!/usr/bin

#!/usr/bin/env python
#codingutf-8
count = 0
while count < 3:
  username = raw_input("USERNAME:")
  password = raw_input("PASSWORD:")
  if username == "user" and password == "123":
    print "welcome!!!"
    break
  elif username != "user" and password != "123":
    print "username or password wrong!!!"
  elif username == "user" and password != "123":
    print "password is wrong!!!"
  elif username != "user" and password == "123":
    print "username or password is wrong!!!"
  count +=1
  if count == 3:
    print "go away ang don‘t back!!!"

Python 练习1