namespace demo3
{
class point //定义点
{
public int x;
public int y;
}
class Program
{
static void Main(string[] args)
{
point startings = new point();
point ending = new point();
double line;
startings.x = 1;
startings.y = 2;
ending.x = 5;
ending.y = 9;
line = Math.Sqrt((ending .x-startings.x)*(ending.x-startings.x) (ending.y-startings.y)*(ending.y-startings.y));
Console.WriteLine("point 1:({0},{1})", startings.x,startings.y);
Console.WriteLine("point 2:({0},{1})", ending.x,ending.y);
Console.WriteLine("两点之间的距离：{0}",line);
Console.ReadKey();
}
}
}
运行结果显示：
