public struct Location
{
private int _xVal;
private int _yVal;
public Location(int xCoordinate, int yCoordinate)
{
_xVal = xCoordinate;
_yVal = yCoordinate;
}
public int xVal
{
get
{
return xVal;
}
set
{
_xVal = value;
}
}
public int yVal
{
get
{
return _yVal;
}
set
{
_yVal = value;
}
}
public override string ToString()
{
return (String.Format("{0},{1}",_xVal,_yVal));
}
}
Location loct = new Location(200, 300);
Console.WriteLine("location loct:",loct);//会调用ToString()方法
//结构体是值类型，Console.WriteLine(),输出的是一个对象，CLR自动会对loct装箱，Location重写了ToString(),会调用ToString()的方法。
个人建议Console.WriteLine("location loct:",loct.ToString());//因为装箱会是性能降低