如何用c#代码实现将本地文件上传到百度文库

用c#代码实现将本地文件上传到百度文库 有研究过这个的吗 希望能帮助下 谢谢

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;

public class BaiduWenkuUploader {
    private static final String UPLOAD_API_URL = "https://wenku.baidu.com/api/upload";

    public static void uploadFile(String filePath) throws IOException {
        File file = new File(filePath);
        String fileName = file.getName();

        // 创建HTTP连接
        URL url = new URL(UPLOAD_API_URL);
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.setDoOutput(true);
        conn.setRequestMethod("POST");
        conn.setRequestProperty("User-Agent", "Mozilla/5.0");
        conn.setRequestProperty("Referer", "https://wenku.baidu.com/");

        // 设置请求正文
        InputStream inputStream = new FileInputStream(file);
        byte[] fileBytes = inputStream.readAllBytes();
        String boundary = "------------------------" + Long.toHexString(System.currentTimeMillis());
        conn.setRequestProperty("Content-Type", "multipart/form-data; boundary=" + boundary);
        conn.setRequestProperty("Content-Length", Integer.toString(fileBytes.length));
        conn.setRequestProperty("Connection", "Keep-Alive");
        conn.setRequestProperty("Cache-Control", "no-cache");

        // 构造请求正文
        String prefix = "--" + boundary + "\r\nContent-Disposition: form-data; name=\"file\"; filename=\"" + fileName + "\"\r\n\r\n";
        String suffix = "\r\n--" + boundary + "--\r\n";
        byte[] prefixBytes = prefix.getBytes();
        byte[] suffixBytes = suffix.getBytes();
        byte[] contentBytes = new byte[fileBytes.length + prefixBytes.length + suffixBytes.length];
        System.arraycopy(prefixBytes, 0, contentBytes, 0, prefixBytes.length);
        System.arraycopy(fileBytes, 0, contentBytes, prefixBytes.length, fileBytes.length);
        System.arraycopy(suffixBytes, 0, contentBytes, prefixBytes.length + fileBytes.length, suffixBytes.length);

        // 发送请求
        conn.getOutputStream().write(contentBytes);

        // 处理响应
        int responseCode = conn.getResponseCode();
        String responseBody = conn.getResponseMessage();
        if (responseCode == HttpURLConnection.HTTP_OK) {
            System.out.println("文件上传成功！");
        } else {
            System.out.println("文件上传失败：" + responseBody);
        }
    }
}