/// <summary>
/// 推播通知目的地
/// </summary>
/// <param name="contents">通知內容清單</param>
protected void PushDestination(List <PushContent> contents)
{
_destinations.ForEach(destination =>
{
var pusher = PusherFactory.CreateInstance(destination);
contents.ForEach(content => pusher.Push(content));
});
}