get和post请求

GET:

/// <summary>  
/// GET请求与获取结果  
/// </summary>  
public static string HttpGet(string Url, string postDataStr)  
{  
    HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Url + (postDataStr == "" ? "" : "?") + postDataStr);  
    request.Method = "GET";  
    request.ContentType = "text/html;charset=UTF-8";  
  
    HttpWebResponse response = (HttpWebResponse)request.GetResponse();  
    Stream myResponseStream = response.GetResponseStream();  
    StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.UTF8);  
    string retString = myStreamReader.ReadToEnd();  
    myStreamReader.Close();  
    myResponseStream.Close();  
  
    return retString;  
} ```

POST:

/// <summary>
/// POST请求与获取结果
/// </summary>
public static string HttpPost(string Url, string postDataStr)
{
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Url);
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
request.ContentLength = postDataStr.Length;
StreamWriter writer = new StreamWriter(request.GetRequestStream(),Encoding.ASCII);
writer.Write(postDataStr);
writer.Flush();
writer.Close();
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
string encoding = response.ContentEncoding;
if (encoding == null || encoding.Length < 1) {
encoding = "UTF-8"; //默认编码
}
StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.GetEncoding(encoding));
string retString = reader.ReadToEnd();
return retString;
} ```