/// <summary>
/// 删除群发消息
/// </summary>
/// <param name="accessToken"></param>
/// <param name="mediaId">发送出去的消息ID</param>
/// <returns></returns>
public static WxJsonResult DeleteSendMessage(string mediaId)
{
//获取accessToken
string accessToken = GetAccessToken();
return(GroupMessageApi.DeleteSendMessage(accessToken, mediaId));
}
