/// <summary>
 /// 引用类型对象转换JSON字符串
 /// </summary>
 /// <param name="jsonSerializer">对象转换JSON字符串</param>
 /// <param name="value">数据对象</param>
 internal static void ClassSerialize(Serializer jsonSerializer, valueType value)
 {
     if (defaultSerializer == null)
     {
         if (jsonSerializer.Push(value))
         {
             MemberSerialize(jsonSerializer, ref value);
             jsonSerializer.Pop();
         }
     }
     else
     {
         defaultSerializer(jsonSerializer, value);
     }
 }