//生成所有小车
public void CreateCars()
{
//创建车组
GameObject carGroup = new GameObject();
carGroup.name = "CarGroup";
for (int i = 0; i < GlobalVaribles.car_list.Count; i++)
{
GameObject carObj = CreateModel.CreateCar(GlobalVaribles.car_list[i]);
//更新allCars和allocableCars数组
GlobalVaribles.allCars.Add(GlobalVaribles.car_list[i]);
GlobalVaribles.allocableCars.Add(GlobalVaribles.car_list[i]);
carObj.transform.parent = carGroup.transform;
}
}