C# 文件与字节数组Bytes[]之间相互转换
C# 文件与字节数组Bytes[]之间相互转换
using System.IO; namespace FileBytes { class Program { static void Main(string[] args) { byte[] bytes = FileToBytes(@"D:\1.txt"); if (bytes.Length > 0) { // 重新保存一份文件 BytesToFile(bytes, @"D:\2.txt"); } // 文件重新保存md5, sha1不变 } /// <summary> /// 文件 -> Bytes /// </summary> /// <param name="path">指定路径文件</param> /// <returns>返回Stream</returns> public static byte[] FileToBytes(string path) { try { if (!System.IO.File.Exists(path)) { return new byte[0]; } using (FileStream fs = new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.Read)) { // 读取文件的 byte[] byte[] bytes = new byte[fs.Length]; fs.Read(bytes, 0, bytes.Length); return bytes; } } catch { throw; } } /// <summary> /// Bytes -> 文件 /// </summary> /// <param name="bytes">byte数组</param> /// <param name="path">保存地址</param> public static void BytesToFile(byte[] bytes, string path) { try { // 文件存在则删除 if (System.IO.File.Exists(path)) { System.IO.File.Delete(path); } // 写入文件,方式一 using (FileStream fs = new FileStream(path, FileMode.CreateNew)) { using (BinaryWriter bw = new BinaryWriter(fs)) { bw.Write(bytes, 0, bytes.Length); } } // 写入文件,方式二 //System.IO.File.WriteAllBytes(path, bytes); } catch { throw; } } } }
posted on 2022-02-15 08:37 funiyi816 阅读(1112) 评论(0) 编辑 收藏 举报