//创建
private void Handle(WebAppCreated evnt)
{
_id = evnt.AggregateRootId;
_info = evnt.Info;
_useFlag = (int)UseFlag.Useable;
}
/// <summary>创建网站节点
/// </summary>
public WebApp(string id, WebAppInfo info) : base(id)
{
ApplyEvent(new WebAppCreated(info));
}