save project

sb.py

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