通过使用网络请求/响应类，我想尝试登录Pinterest网站..但我无法做到这一点，因为它给了我＆＃39; csrf错误＆＃39;。
以下是我的代码。
WebRequest request = WebRequest.Create("https://www.pinterest.com/login");
request.Credentials = new NetworkCredential("myid", "mypassword");
request.Method = "POST";
string postData = "This is a test that posts this string to a Web server.";
byte[] byteArray = System.Text.Encoding.UTF8.GetBytes(postData);
request.ContentType = "application/x-www-form-urlencoded";
request.ContentLength = byteArray.Length;
Stream dataStream = request.GetRequestStream();
dataStream.Write(byteArray, 0, byteArray.Length);
dataStream.Close();
WebResponse response = request.GetResponse();
Console.WriteLine(((HttpWebResponse)response).StatusDescription);
dataStream = response.GetResponseStream();
StreamReader reader = new StreamReader(dataStream);
string responseFromServer = reader.ReadToEnd();
Console.WriteLine(responseFromServer);
Console.ReadLine();
reader.Close();
dataStream.Close();
response.Close();
我在这里做错了什么？