这个示例代码怎么使用?谢谢了
Ta的回复 : string token = "[调用鉴权接口获取的token]"; string host = "https://aip.baidubce.com/rest/2.0/face/v3/search?access_token=" + token; Encoding encoding = Encoding.Default; HttpWebRequest request = (HttpWebRequest)WebRequest.Create(host); request.Method = "post"; request.KeepAlive = true; String str = "{\"image\":\"027d8308a2ec665acb1bdf63e513bcb9\",\"image_type\":\"FACE_TOKEN\",\"group_id_list\":\"group_repeat,group_233\",\"quality_control\":\"LOW\",\"liveness_control\":\"NORMAL\"}"; byte[] buffer = encoding.GetBytes(str); request.ContentLength = buffer.Length; request.GetRequestStream().Write(buffer, 0, buffer.Length); HttpWebResponse response = (HttpWebResponse)request.GetResponse(); StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.Default); string result = reader.ReadToEnd(); Console.WriteLine("人脸搜索:"); Console.WriteLine(result); return result; 图不清楚。这是示例代码。替换哪些