unity post 请求发送字符串

可以通过 UnityWebRequest.Post 方法来发送 POST 请求，其中需要传入请求的 URL 和要发送的字符串数据。例如：

using UnityEngine;
using UnityEngine.Networking;

public class MyScript : MonoBehaviour
{
    void Start()
    {
        StartCoroutine(SendPostRequest());
    }

    IEnumerator SendPostRequest()
    {
        string url = "http://example.com/api";
        string data = "name=John&age=30";

        UnityWebRequest request = UnityWebRequest.Post(url, data);
        yield return request.SendWebRequest();

        if (request.result == UnityWebRequest.Result.Success)
        {
            Debug.Log("Post request sent successfully");
        }
        else
        {
            Debug.Log("Error sending post request: " + request.error);
        }
    }
}