save project

diy1.py

@@ -6,6 +6,8 @@ while True:
     if zh==username and mm==userpassword:
     if zh==username and mm==userpassword:
         print("登录成功")
         print("登录成功")
         break
         break
-    else:
-        print("登录失败")
+    if zh != username:
+        print("账号错误，请重新输入！")
+    if mm != userpassword:
+        print("密码错误，请重新输入！")
 print("欢迎来到贝尔编程！")        
 print("欢迎来到贝尔编程！")        
\ No newline at end of file