auto save

diy2.py

@@ -6,4 +6,11 @@ while True:
     if name == username and password == userpassword:
     if name == username and password == userpassword:
         print("登录成功!")
         print("登录成功!")
     print("用户名和密码错误!请重新输入")
     print("用户名和密码错误!请重新输入")
+print("欢print("登录成功!")
+        break
+    if name !=username：
+        print("错误")
+        continue
+    if password !=userpassword：
+        print("错误")
 print("欢迎来到贝尔编程!")
 print("欢迎来到贝尔编程!")
\ No newline at end of file