(x>=100) && (x<300)
Console.WriteLine("test");
"I am good."
int a = 100;
if (x>100) Console.WriteLine("success");
;
public Vector Move(double dx, double dy) => new Vector(x+dx, y+dy);
public void PrintXvalue() => Console.WriteLine(this.x);
public override string ToString() => string.Format("x = {0}, y = {1}",x,y);
✍ 속성의 람다식public doulbe Angle => Math.Atan2(y,x);
//get만 제공하므로 readonly 속성으로 제공된다.
✍인덱서의 람다식public double this[string angleType] =>
angleType == "radian" ? this.Angle :
angleType == "degree" ? RadianToDegree(this.Angle) :
double.NaN;