save project

diy1.py

@@ -8,6 +8,11 @@ while True:
 # 如果用户输入的账号、密码正确，提示登陆成功
     if name==username and sb==userpassword:
         print("登录成功")
-        break()
+        break
+    if name!=username:
+        print("账号错误")
+    if sb!=userpassword:
+        print("密码错误")
     print("请重新输入密码")
-print("欢迎来到贝尔编程")
\ No newline at end of file
+print("欢迎来到贝尔编程")
+    
\ No newline at end of file