C#,常用的SQLiteHelper基类
using System;using System.Data;using System.Data.SQLite;namespace LQWVJE.DAL{ public static class SQLiteHelper { /// summary /// ConnectionString样例：Data Source=Test.db3;Pooling=true;FailIfMissing=false /// /summary…
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C#文件操作基类
public static class DirFile{#region 检测指定目录是否存在/// <summary>/// 检测指定目录是否存在/// </summary>/// <param name="directoryPath">目录的绝对路径</param>/// <returns></returns>public static bool IsExist…
C#, COM串口通讯基类
串口常用的使用流程1、初始化串口2、打开串口3、发送数据4、接收数据public class SerialCommon{ public SerialPort MySerialPort = new SerialPort(); public string[] GetPortNames() { return SerialPort.GetPortNames();//获取当前计算机的串行端口名…