save project

diy1.py

@@ -7,8 +7,10 @@ while True:
     if i == username and a == userpassword:
         print("登陆成功")
         break
-    else:
-        print("错误，重新输入")
+    if i != username: 
+        print("帐号错误，重新输入")
+    if a != userpassword: 
+        print("密码错误，重新输入")             
 print("欢迎来到贝尔编程")
 
 # 如果用户输入的账号、密码正确，提示登陆成功break
\ No newline at end of file