Python学习之路Day1：passwd

加密密码：

import getpass
username = input("username:")
password = getpass.getpass("password:")
print(username,password)

用户名和密码判断：

_username = 'alex'
_password ='abc123'
username = input("username:") 
password = input("password:") 
if _username == username and _password == password:
     print("Welcome user {name} login..." .format(name=username)) 
else:
     print("Invalid username or password!")
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