save project

diy1.py

@@ -8,7 +8,10 @@ while True:
     if name==username and password==userpassword:
         print("登录成功:")
         break
-    print("账号密码错误，请重新输入:")
+    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:")