//异步方法
public void SynchInvoke(System.Windows.Forms.WindowsFormsSynchronizationContext synccontext, System.Threading.SendOrPostCallback callback)
{
FrmEditImPlement frm = new FrmEditImPlement();
PlugArg arg = new PlugArg(frm);
_showfrmevent(arg);//送往前台展现
synccontext.Post(callback, null);
}