Find centralized, trusted content and collaborate around the technologies you use most.
Teams
Q&A for work
Connect and share knowledge within a single location that is structured and easy to search.
要在 C# 中发送 USSD 代码，我们总是使用 COM 端口，但新手机不包含 COM 端口，有没有办法在不使用 COM 端口的情况下将 USSD 代码运行到手机？如果没有，如何为现在的手机手动创建 COM 端口？