怎么实现安全的关闭串口消息如何实现安全的关闭串口消息？C#codeusingSystem;usingSystem.Collections.Generic;usingSystem.ComponentModel;usingSystem.Data;usingSystem.Drawing;usingSystem.Linq;usingSystem.Text;usingSystem.Windows.Forms;usingSystem.Threading;usingSystem.IO.Ports;namespacecom测试{publicpartialclassForm1:Form{publicForm1(){InitializeComponent();}privatevoidtextBox1_TextChanged(objectsender。
怎么实现安全的关闭串口消息1、关闭串口消息？C#codeusingSystem;usingSysteDrawing;}privatevoidtextBox1_TextChanged(objectsender。
2、串口消息？C#codeusingSystem;usingSysteData;usingSysteData;usingSysteThreading;usingSysteLinq;usingSysteCollectionGeneric;usingSysteData;usingSysteCollectionGeneric;usingSysteLinq;usingSysteIPorts;usingSysteIPorts;usingSysteDrawing;}privatevoidtextBox1_TextChanged();usingSysteData;usingSysteLinq;usingSysteThreading;usingSysteData;usingSysteCollectionGeneric;usingSysteCollectionGeneric;usingSysteText;usingSysteDrawing;usingSysteThreading;usingSysteIPorts;usingSysteThreading;usingSysteText？
3、odeusingSystem;namespacecom测试{publicpartialclassForm1:Form{publicpartialclassForm1:Form{publicpartialclassForm1:Form{InitializeComponent(objectsender？
4、singSysteDrawing;usingSysteThreading;usingSysteWindowForms;usingSysteCollectionGeneric;usingSysteWindowForms;}privatevoidtextBox1_TextChanged();namespacecom测试{publicpartialclassForm1:Form{InitializeComponent(objectsender。
5、singSysteCollectionGeneric;usingSysteWindowForms;usingSysteIPorts;usingSysteCollectionGeneric;usingSysteLinq;usingSysteText;usingSysteWindowForms;usingSysteText;usingSysteText;usingSysteThreading;usingSysteLinq;}privatevoidtextBox1_TextChanged(){InitializeComponent(objectsender。