int x=5,y=5,interval=3;
int transparency=50;
PointFProperty pos = (PointFProperty)ExpressionUtils.GetProperty(Property.ThisProperty, "位置");
Random rnd = new Random(Property.Index);
if((Property.Index % interval)==0){
pos.X = +rnd.Next(-x, x);
pos.Y = -rnd.Next(-y, y);
}
SingleProperty toumei = (SingleProperty)ExpressionUtils.GetProperty(Property.ThisProperty, "不透明度");
toumei.TypeSafeValue = (float)rnd.Next(transparency, 100);