Unity中UnityWebRequest使用

IEnumerator Get(string strUrl)
{
    using UnityWebRequest www = new UnityWebRequest(strUrl, UnityWebRequest.kHttpVerbGET);
    www.downloadHandler = new DownloadHandlerBuffer();
    www.disposeDownloadHandlerOnDispose = true;
    yield return www.SendWebRequest();
    if (www.result == UnityWebRequest.Result.ConnectionError || www.result == UnityWebRequest.Result.ProtocolError)
    {
        //失败
    }
    else
    {
		byte[] ret = www.downloadHandler.data;
    }
    bSendingMessage = false;
}

IEnumerator Post(string url, byte[] body)
{
    using UnityWebRequest www = new UnityWebRequest(url, UnityWebRequest.kHttpVerbPOST);
    www.disposeUploadHandlerOnDispose = true;
    www.disposeDownloadHandlerOnDispose = true;
    www.uploadHandler = new UploadHandlerRaw(body);
    www.downloadHandler = new DownloadHandlerBuffer();
    www.SetRequestHeader("Content-Type", "application/octet-stream");
    yield return www.SendWebRequest();
    if (www.result == UnityWebRequest.Result.ConnectionError || www.result == UnityWebRequest.Result.ProtocolError)
    {
        //失败
    }
    else
    {
        byte[] ret = www.downloadHandler.data;
    }
}