public static SOTHUC operator -(SOTHUC t1, SOTHUC t2)
{
SOTHUC t = new SOTHUC();
t.thuc = t1.thuc - t2.thuc;
t.ao = t1.ao - t2.ao;
return(t);
}
static void Main(string[] args)
{
SOTHUC t1 = new SOTHUC(1, 2);
t1.hien();
SOTHUC t2 = new SOTHUC(3, 4);
t2.hien();
Console.WriteLine("tong 2 so thuc");
SOTHUC t3 = t1 + t2;
t3.hien();
Console.WriteLine("hieu 2 so thuc");
SOTHUC t4 = t1 - t2;
t4.hien();
Console.ReadKey();
}
public SOTHUC(SOTHUC t2)
{
this.thuc = t2.thuc;
this.ao = t2.ao;
}