FTP音频文件上载在C#中不起作用

using COSXML;
using COSXML.Auth;
using COSXML.Model.Object;
using COSXML.CosException;

// 设置腾讯云 COS的访问密钥
string secretId = "YourSecretId";
string secretKey = "YourSecretKey";

// 创建腾讯云 COS客户端对象
CosXmlConfig config = new CosXmlConfig.Builder()
    .SetRegion("YourRegion") // 设置地域
    .SetDebugLog(true) // 是否开启调试日志
    .Build();

QCloudCredentialProvider cosCredentialProvider = new DefaultQCloudCredentialProvider(secretId, secretKey, 600);

CosXmlServer cosXml = new CosXmlServer(config, cosCredentialProvider);

// 设置要上传的音频文件路径和目标路径
string localFilePath = "YourLocalFilePath";
string cosPath = "YourCosPath";

// 执行上传操作
try
{
    TransferManager.UploadAsync(cosXml, "YourBucket", cosPath, localFilePath, null).Wait();
    Console.WriteLine("Upload success");
}
catch (CosClientException clientEx)
{
    Console.WriteLine("Upload failed: " + clientEx.Message);
}
catch (CosServerException serverEx)
{
    Console.WriteLine("Upload failed: " + serverEx.GetInfo());
}