通用工具类库

Windows/CS/Framework4.0/Utils/Utils.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 15
+VisualStudioVersion = 15.0.36617.4
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Utils", "Utils\Utils.csproj", "{0AAA20B8-F8B1-4C09-ADBF-E6FD650EE9D4}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{0AAA20B8-F8B1-4C09-ADBF-E6FD650EE9D4}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{0AAA20B8-F8B1-4C09-ADBF-E6FD650EE9D4}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{0AAA20B8-F8B1-4C09-ADBF-E6FD650EE9D4}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{0AAA20B8-F8B1-4C09-ADBF-E6FD650EE9D4}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {7019BD3D-89E7-4B0D-85B6-9E26BD8EF151}
+	EndGlobalSection
+EndGlobal

Windows/CS/Framework4.0/Utils/Utils/Properties/AssemblyInfo.cs

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+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// 有关程序集的一般信息由以下
+// 控制。更改这些特性值可修改
+// 与程序集关联的信息。
+[assembly: AssemblyTitle("Net40通用工具库")]
+[assembly: AssemblyDescription("包含Base64、CRC编码等操作")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("JoyD")]
+[assembly: AssemblyProduct("com.joyd.Utils")]
+[assembly: AssemblyCopyright("Copyright ©  2025 JoyD")]
+[assembly: AssemblyTrademark("JoyD")]
+[assembly: AssemblyCulture("zh-CN")]
+
+// 将 ComVisible 设置为 false 会使此程序集中的类型
+//对 COM 组件不可见。如果需要从 COM 访问此程序集中的类型
+//请将此类型的 ComVisible 特性设置为 true。
+[assembly: ComVisible(false)]
+
+// 如果此项目向 COM 公开，则下列 GUID 用于类型库的 ID
+[assembly: Guid("0aaa20b8-f8b1-4c09-adbf-e6fd650ee9d4")]
+
+// 程序集的版本信息由下列四个值组成: 
+//
+//      主版本
+//      次版本
+//      生成号
+//      修订号
+//
+// 可以指定所有值，也可以使用以下所示的 "*" 预置版本号和修订号
+//通过使用 "*"，如下所示:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]

Windows/CS/Framework4.0/Utils/Utils/Util.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace JoyD.Windows.CS
+{
+    /// <summary>
+    /// 通用工具和方法
+    /// </summary>
+    public static class Util
+    {
+        // CRC16/XMODEM算法实现（带起始位置和长度）
+        public static ushort CalculateCRC16(byte[] data, int startIndex, int length)
+        {
+            ushort crc = 0;
+            int endIndex = startIndex + length;
+            for (int i = startIndex; i < endIndex && i < data.Length; i++)
+            {
+                crc ^= (ushort)(data[i] << 8);
+                for (int j = 0; j < 8; j++)
+                {
+                    if ((crc & 0x8000) != 0)
+                        crc = (ushort)((crc << 1) ^ 0x1021);
+                    else
+                        crc <<= 1;
+                }
+            }
+            return crc;
+        }
+
+
+
+        // CRC32-MPEG2算法实现
+        public static uint CalculateCRC32(byte[] data)
+        {
+            return CalculateCRC32(0xFFFFFFFF, data);
+        }
+
+        // 支持增量计算的CRC32方法
+        public static uint CalculateCRC32(uint crc, byte[] data)
+        {
+            uint polynomial = 0x04C11DB7;
+
+            for (int i = 0; i < data.Length; i++)
+            {
+                crc ^= (uint)data[i] << 24;
+                for (int j = 0; j < 8; j++)
+                {
+                    if ((crc & 0x80000000) != 0)
+                        crc = (crc << 1) ^ polynomial;
+                    else
+                        crc <<= 1;
+                }
+            }
+            return crc;
+        }
+
+        // 计算文件的CRC32（通过文件路径）
+        public static uint CalculateFileCRC32(string filePath)
+        {
+            using (FileStream fs = new FileStream(filePath, FileMode.Open, FileAccess.Read))
+            {
+                return CalculateCRC32(fs);
+            }
+        }
+
+        // 计算文件的CRC32（通过已打开的文件流）
+        public static uint CalculateCRC32(FileStream fs)
+        {
+            uint crc = 0xFFFFFFFF;
+            uint polynomial = 0x04C11DB7;
+
+            // 保存当前位置
+            long originalPosition = fs.Position;
+
+            try
+            {
+                // 重置到文件开头
+                fs.Seek(0, SeekOrigin.Begin);
+
+                byte[] buffer = new byte[4096];
+                int bytesRead;
+
+                while ((bytesRead = fs.Read(buffer, 0, buffer.Length)) > 0)
+                {
+                    for (int i = 0; i < bytesRead; i++)
+                    {
+                        crc ^= (uint)buffer[i] << 24;
+                        for (int j = 0; j < 8; j++)
+                        {
+                            if ((crc & 0x80000000) != 0)
+                                crc = (crc << 1) ^ polynomial;
+                            else
+                                crc <<= 1;
+                        }
+                    }
+                }
+            }
+            finally
+            {
+                // 恢复到原始位置
+                fs.Seek(originalPosition, SeekOrigin.Begin);
+            }
+            return crc;
+        }
+
+        // byte[]转base64编码
+        public static string ByteArrayToBase64(byte[] data)
+        {
+            return Convert.ToBase64String(data);
+        }
+
+        // base64转byte[]编码
+        public static byte[] Base64ToByteArray(string base64)
+        {
+            return Convert.FromBase64String(base64);
+        }
+
+        // 构建不含前缀的FTPC命令（返回byte[]，直接处理字节流）
+        public static byte[] BuildRawFTPCommand(char command, params object[] parameters)
+        {
+            using (MemoryStream ms = new MemoryStream())
+            {
+                // 写入命令（ASCII编码的单个字符）
+                ms.WriteByte((byte)command);
+
+                // 添加参数（参数之间没有间隔，直接写入字节）
+                foreach (var param in parameters)
+                {
+                    if (param is long)
+                    {
+                        // filesize24或addr24: 3字节大端序
+                        long value = (long)param;
+
+                        // 使用位运算直接获取24位值的三个字节，大端序
+                        byte byte1 = (byte)((value >> 16) & 0xFF); // 最高位字节
+                        byte byte2 = (byte)((value >> 8) & 0xFF);  // 中间字节
+                        byte byte3 = (byte)(value & 0xFF);         // 最低位字节
+
+                        // 直接写入三个字节
+                        ms.WriteByte(byte1);
+                        ms.WriteByte(byte2);
+                        ms.WriteByte(byte3);
+                    }
+                    else if (param is ushort)
+                    {
+                        // N16: 16位大端序数据长度
+                        ushort value = (ushort)param;
+
+                        // 使用位运算直接获取16位值的两个字节，大端序
+                        byte byte1 = (byte)((value >> 8) & 0xFF);  // 高8位字节
+                        byte byte2 = (byte)(value & 0xFF);         // 低8位字节
+
+                        // 直接写入两个字节
+                        ms.WriteByte(byte1);
+                        ms.WriteByte(byte2);
+                    }
+                    else if (param is uint)
+                    {
+                        // 处理uint类型（如CRC32值）
+                        uint value = (uint)param;
+
+                        // 使用位运算直接获取32位值的四个字节，大端序
+                        byte byte1 = (byte)((value >> 24) & 0xFF); // 最高位字节
+                        byte byte2 = (byte)((value >> 16) & 0xFF); // 次高位字节
+                        byte byte3 = (byte)((value >> 8) & 0xFF);  // 次低位字节
+                        byte byte4 = (byte)(value & 0xFF);         // 最低位字节
+
+                        // 直接写入四个字节
+                        ms.WriteByte(byte1);
+                        ms.WriteByte(byte2);
+                        ms.WriteByte(byte3);
+                        ms.WriteByte(byte4);
+                    }
+                    else if (param is string)
+                    {
+                        // 字符串参数直接写入ASCII字节
+                        string strValue = (string)param;
+                        byte[] strBytes = Encoding.ASCII.GetBytes(strValue);
+                        ms.Write(strBytes, 0, strBytes.Length);
+                    }
+                    else if (param is byte[])
+                    {
+                        // byte[]参数直接写入
+                        byte[] data = (byte[])param;
+                        ms.Write(data, 0, data.Length);
+                    }
+                }
+
+                // 获取当前流中的所有字节，用于计算CRC16
+                byte[] currentBytes = ms.ToArray();
+
+                // 计算CRC16
+                ushort crc16 = CalculateCRC16(currentBytes, 0, currentBytes.Length);
+
+                // 写入CRC16（大端序）
+                byte crcByte1 = (byte)((crc16 >> 8) & 0xFF); // 高8位
+                byte crcByte2 = (byte)(crc16 & 0xFF);         // 低8位
+                ms.WriteByte(crcByte1);
+                ms.WriteByte(crcByte2);
+
+                // 返回完整的字节数组
+                return ms.ToArray();
+            }
+        }
+
+        // 构建完整通信命令（接受byte[]输入）
+        public static string BuildCommunicationCommand(byte[] rawFTPCommand)
+        {
+            string base64 = Convert.ToBase64String(rawFTPCommand);
+            return $"set(LFMGR: FTPC, \"{base64}\")";
+        }
+    }
+}

Windows/CS/Framework4.0/Utils/Utils/Utils.csproj

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+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{0AAA20B8-F8B1-4C09-ADBF-E6FD650EE9D4}</ProjectGuid>
+    <OutputType>Library</OutputType>
+    <AppDesignerFolder>Properties</AppDesignerFolder>
+    <RootNamespace>JoyD.Windows.CS</RootNamespace>
+    <AssemblyName>Utils</AssemblyName>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+    <Deterministic>true</Deterministic>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+    <DocumentationFile>bin\Debug\Utils.xml</DocumentationFile>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup>
+    <ApplicationIcon>Utils.ico</ApplicationIcon>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Xml.Linq" />
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="Microsoft.CSharp" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.Xml" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="Properties\AssemblyInfo.cs" />
+    <Compile Include="Util.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <Content Include="Utils.ico" />
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+</Project>