如何在端口中拒绝解决访问权限

本文介绍了如何在端口中拒绝解决访问权限的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

SerialPort port = new SerialPort（COM36）; port.Open（）; string t = port.ReadExisting（）; Thread.Sleep（100）; string cmd =ATD; Thread.Sleep（100）; string phoneNumber =; Thread.Sleep（100）; port.WriteLine（cmd + phoneNumber +; \ r） ; port.Close（）; 错误是COM36上的访问被拒绝，我不是确定为什么

SerialPort port = new SerialPort("COM36"); port.Open(); string t = port.ReadExisting(); Thread.Sleep(100); string cmd = "ATD"; Thread.Sleep(100); string phoneNumber = ""; Thread.Sleep(100); port.WriteLine(cmd + phoneNumber + ";\r"); port.Close(); The error is access denied on COM36, I am not sure why

推荐答案

该端口不存在或被其他进程保持打开状态。 The port either doesn't exist or is being held open by some other process.