1. Post請求：
   using UnityEngine;
   using UnityEngine.Networking;
   using System.Collections;

public class MyBehavior : MonoBehaviour
{
void Start()
{
StartCoroutine(Upload());
}

IEnumerator Upload()
{
    WWWForm form = new WWWForm();
    form.AddField("key", "value");
    UnityWebRequest request = UnityWebRequest.Post(url, form)
    yield return request.SendWebRequest();
    Debug.Log(request.error);
    Debug.Log(request.responseCode);
    Debug.Log(request.downloadHandler.text);
}

}

2. Get請求
   IEnumerator Get()
   {
   UnityWebRequest request =UnityWebRequest.Get(url);
   yield return request.SendWebRequest();
   Debug.Log(request.error);
   Debug.Log(request.responseCode);
   Debug.Log(request.downloadHandler.text);
   }

3. 加載AssetBundle
   第一種方式,將AssetBundle加載到緩存
   IEnumerator LoadABWeb()
   {
   UnityWebRequest request = UnityWebRequest.GetAssetBundle(path);
   yield return request.SendWebRequest();
   Debug.Log(request.error);
   AssetBundle bundle = DownloadHandlerAssetBundle.GetContent(request);
   audio.clip = bundle.LoadAsset<AudioClip>("music");
   audio.Play();
   }
   第二種方式：加載AssetBundle并保存到本地

IEnumerator Test()
{
UnityWebRequest request =UnityWebRequest.Get(path);
yield return request.SendWebRequest();
CreatFile(path, request.downloadHandler.data,request.downloadHandler.data.Length);
AssetBundle ab=AssetBundle.LoadFromFile(path);
audio.clip = ab.LoadAsset<AudioClip>("music");
audio.Play();
}

void CreatFile(string path, byte[] file, int length)
{
Stream sw;
FileInfo File = new FileInfo(path);
if (!File.Exists)
{
sw = File.Create();
}
else
{
return;
}
sw.Write(file, 0, length);
sw.Close();
sw.Dispose();
}