auto save

diy2.py

-username = "python"
-userpassword = "123456"
+username = "cy"
+userpassword = "nmsl"
 while True:
-    name = input("请输入用户名:")
-    password = input("请输入密码:")
+    name = input("输用户名:")
+    password = input("输密码:")
     if name == username and password == userpassword:
         print("登录成功!")
-    print("用户名和密码错误!请重新输入")
-print("欢迎来到贝尔编程!")
\ No newline at end of file
+        break
+    print("nmsl!好好输!")
+print("welcome to nmsl !")
\ No newline at end of file