当用户输入密码时候，如果输入正确会输出welcom user login，如果输入错误会输出invalid username or password
#!/usr/bin/env python
# -*- coding:utf-8 -*-
import getpass
_username = "xcn"
_password = "admin"
username = input("username:")
password = getpass.getpass("password:")
print(username, password)
if _username == username and _password == password:
print("welcome user {name} login ..." .format(name=username))
else:
print("invalid username or password!")
ce#!/usr/bin/env python
# -*- coding:utf-8 -*-
age_of_xcn = 20
guess_age = int(input("guess age:"))
if guess_age == age_of_xcn:
print("yes,you got it")
elif guess_age > age_of_xcn:
print("think smaller")
else:
print("think bigger")
执行结果：
guess age:12
think bigger
guess age:22
think smaller
