捕获异常的问题
WebRequest objWebRequest = WebRequest.Create(string.Format(url, PhoneNumber, Content));
objWebRequest.Credentials = CredentialCache.DefaultCredentials;
objWebRequest.Method = "GET";
WebResponse objWebResponse = objWebRequest.GetResponse();
Stream DataStream = objWebResponse.GetResponseStream();
StreamReader DataReader = new StreamReader(DataStream);
string Result = DataReader.ReadToEnd();
DataReader.Close();
DataStream.Close();
objWebResponse.Close();
我想捕获WebResponse objWebResponse = objWebRequest.GetResponse();这句异常,要怎么写?