带标志的C#中的cURL调用

我想用C#做一个下面的curl调用：

我发现我应该使用WebRequest类，但我仍然不确定如何处理这部分：

-F "myfile=@tutorial.html"

中的代码段显示了如何使用WebRequest类发送POST数据：

// Create a request using a URL that can receive a post. 
WebRequest request = WebRequest.Create("http://localhost:8983/solr/update/extract?literal.id=doc1&commit=true");
// Set the Method property of the request to POST.
request.Method = "POST";
// Create POST data and convert it to a byte array.
string postData = "myfile=@tutorial.html";
byte[] byteArray = Encoding.UTF8.GetBytes(postData);
// Set the ContentType property of the WebRequest.
request.ContentType = "application/x-www-form-urlencoded";
// Set the ContentLength property of the WebRequest.
request.ContentLength = byteArray.Length;

---

作为WebRequest的替代品，您可以考虑使用WebCube类。它提供了比WebRequest更干净、更简单的语法。大概是这样的：

using (WebClient client = new WebClient())
        {
            client.Headers[HttpRequestHeader.ContentType] = "application/x-www-form-urlencoded";

            byte[] postResult = client.UploadFile("http://localhost:8983/solr/update/extract?literal.id=doc1&commit=true", "POST", "tutorial.html");
        }

看

using (WebClient client = new WebClient())
        {
            client.Headers[HttpRequestHeader.ContentType] = "application/x-www-form-urlencoded";

            byte[] postResult = client.UploadFile("http://localhost:8983/solr/update/extract?literal.id=doc1&commit=true", "POST", "tutorial.html");
        }