save project

diy2.py

@@ -6,11 +6,10 @@ while True:
     if name == username and password == userpassword:
         print("登录成功!")
         break
-    if name!=username and password!=userpassword:
-        print("用户名和密码错误，请重新输入")
-    
-            print("用户名错误，请重新输入")
-        else
-            print("用户密码错误，请重新输入")
+    if name!=username:
+        print("用户名错误，请重新输入")
+        continue
+    if password!=userpassword:
+        print("用户密码错误，请重新输入")
     
 print("欢迎来到贝尔编程!")
\ No newline at end of file