tencent cloud

// 需要被转发的消息列表，消息列表里可以包含合并消息，不能包含群 Tips 消息
var message = new Message
{
   message_conv_id = conv_id,
   message_conv_type = TIMConvType.kTIMConv_Group,
   message_elem_array = new List<Elem>{
    new Elem
   {
     elem_type = TIMElemType.kTIMElem_Merge,
     merge_elem_title = "user1与user2的聊天", // 合并消息标题
     merge_elem_message_array = new List<Message>
     {
      message1,
      message2
     },
     merge_elem_abstract_array = new List<string>
     {
      "user1:hello", "user2:你好" // 合并消息摘要列表
     },
     merge_elem_compatible_text = "当前版本不支持该消息" // 合并消息兼容文本，低版本 SDK 如果不支持合并消息，默认会收到一条文本消息，文本消息的内容为 compatibleText
   }},
};
StringBuilder messageId = new StringBuilder(128);
TIMResult res = TencentIMSDK.MsgSendMessage(conv_id, TIMConvType.kTIMConv_Group, message, messageId, (int code, string desc, string json_param, string user_data)=>{
 // 消息发送异步结果
});