解析多部分响应C# .net标准

HttpClient client = new HttpClient();

HttpResponseMessage response = await client.GetAsync(url);

response.EnsureSuccessStatusCode();

HttpContent responseContent = response.Content;

if (responseContent is MultipartFormDataContent)
{
    MultipartFormDataContent multipartContent = (MultipartFormDataContent)responseContent;
    foreach (HttpContent part in multipartContent)
    {
        // 处理每个部分的数据
    }
}

string partContentType = part.Headers.ContentType.MediaType;

if (partContentType == "text/plain")
{
    string text = await part.ReadAsStringAsync();
    // 处理文本数据
}
else if (partContentType.StartsWith("image/"))
{
    byte[] imageBytes = await part.ReadAsByteArrayAsync();
    // 处理图像数据
}
// 其他数据类型的处理