save project

diy1.py

@@ -6,8 +6,11 @@ while True:
     password=input("请输入密码")
     if name==password and password==userpassword:
         print("登录成功")
-        break   
-    print("用户名和密码错误！请重新输入！")
+        break
+    if name!=username:
+        print("用户名错误！请重新输入！")
+    if password != userpassword:
+        print("密码错误！请重新输入！")
 print("欢迎来到贝尔编程")