Java /C# 实现文件压缩

Java实现文件压缩可以使用Java内置的ZipOutputStream类。下面是一个示例代码：

import java.io.*;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

public class FileCompressor {
    public static void main(String[] args) throws Exception {
        String sourceFile = "source.txt";
        String compressedFile = "compressed.zip";
        compress(sourceFile, compressedFile);
    }

    private static void compress(String sourceFile, String compressedFile) throws Exception {
        FileOutputStream fos = new FileOutputStream(compressedFile);
        ZipOutputStream zos = new ZipOutputStream(fos);

        File file = new File(sourceFile);
        FileInputStream fis = new FileInputStream(file);

        ZipEntry zipEntry = new ZipEntry(file.getName());
        zos.putNextEntry(zipEntry);

        byte[] bytes = new byte[1024];
        int length;
        while ((length = fis.read(bytes)) >= 0) {
            zos.write(bytes, 0, length);
        }

        zos.closeEntry();
        fis.close();
        zos.close();
        fos.close();
    }
}

C#实现文件压缩可以使用System.IO.Compression.ZipArchive类。下面是一个示例代码：

using System.IO;
using System.IO.Compression;

class Program {
    static void Main(string[] args) {
        string sourceFile = "source.txt";
        string compressedFile = "compressed.zip";
        Compress(sourceFile, compressedFile);
    }

    private static void Compress(string sourceFile, string compressedFile) {
        using (FileStream fs = new FileStream(compressedFile, FileMode.Create)) {
            using (ZipArchive zipArchive = new ZipArchive(fs, ZipArchiveMode.Create)) {
                zipArchive.CreateEntryFromFile(sourceFile, Path.GetFileName(sourceFile));
            }
        }
    }
}