如何从PostAsync (HttpClient)中读取图像？

HttpClient client = new HttpClient();
string url = "http://example.com/api/upload";
byte[] imageBytes = File.ReadAllBytes("image.jpg");
ByteArrayContent content = new ByteArrayContent(imageBytes);
content.Headers.ContentType = new MediaTypeHeaderValue("image/jpeg");

HttpResponseMessage response = await client.PostAsync(url, content);

if (response.IsSuccessStatusCode)
{
    // 读取响应内容
    byte[] responseBytes = await response.Content.ReadAsByteArrayAsync();

    // 将响应内容保存为图像文件
    File.WriteAllBytes("response.jpg", responseBytes);
}