Parse 类型转换⭐⭐⭐⭐⭐

//转成XElement
1：XElement xe = XElement.Parse(Encoding.UTF8.GetString(data));

2：var deliveryTime = DateTimeOffset.Parse(deliveryOrderLevel.Element("deliveryTime").Value).ToUnixTimeSeconds().ToString();

3： var message = _httpClientFactory.CreateClient().PostAsync(url, content).Result;
  if (message.IsSuccessStatusCode)
  {
     var s = message.Content.ReadAsStringAsync().Result;
     var j = JObject.Parse(s);//转成JObject的类型
     var err = (string)j["Head"]["transMessage"];
  }

4: XElement xe = XElement.Parse(doc.InnerXml);// doc==>XmlDocument

5:var id = Guid.Parse(tid);//转成Guid的类型