public static void Main()
{
Car myCar=new Car("Rowe");
Car heCar=new Car("BYD", 3);
Car youCar=new Car();
Bike myBike; //#important# If Bike were a class, this produce a compile error, because myBike contain a uninitialized reference �� an address that points nowhere; Ȼ������struct��˵�������������Ѿ���stack�Ϸ����˿ռ�
myBike.nWheels = 2;
//string foo = myBike.descript; /*everything must be initialized before use. A struct is considered fully initialized either when the new operator called or when values be individually assigned to all its fields*/
Console.WriteLine(youCar.ToString()); //ToString()���麯��, If you don��t override ToString() in classes that you define, your classes inherit the System.Object implementation, which displays the name of the class.
}
public static void Main()
{
Car myCar=new Car("Rowe");
Car youCar;
Bike myBiker;
}