UnityWebRequest.Dispose

Description

Signals that this UnityWebRequest is no longer being used, and should clean up any resources it is using.

You must call Dispose once you have finished using a UnityWebRequest object, regardless of whether the request succeeded or failed.

安全起见，通常最好的做法是采用 using statement 确保正确清理 [UnityWebRequest]，以防存在未捕获的异常。

using UnityEngine;
using UnityEngine.Networking;
using System.Collections;

public class MyExampleBehaviour : MonoBehaviour
{
    public IEnumerator Start()
    {
        using (UnityWebRequest request = UnityWebRequest.Get("http://my-website.com"))
        {
            yield return request.Send();
            Debug.Log("Server responded: " + request.downloadHandler.text);
        }
    }
}