auto save

diy2.py

+username="python"
+userpassword="123456"
+name=input("请输入用户名:")
+password=input("请输入密码:")
+if name==username and password==userpassword:
+    print("登录成功!")
+if name!=username:
+    print("用户错误!")
+if password!=userpassword:
+    print("密码错误!")
\ No newline at end of file