一球从100米高度自由落下，每次落地后反跳回原高度的一半；再落下，求它在 第10次落地时，共经过多少米？第10次反弹多高？
public class Main {
private double TotalHeight = 100;
private double CurHeight = 50;

public void drop(int times) {
if ((times - 1) == 0) {
return;
}

setTotalHeight(getTotalHeight() + 2 * getCurHeight());
setCurHeight(getCurHeight() / 2);

drop(times - 1);
}

public double getTotalHeight() {
return TotalHeight;
}

public void setTotalHeight(double totalHeight) {
TotalHeight = totalHeight;
}

public double getCurHeight() {
return CurHeight;
}

public void setCurHeight(double curHeight) {
CurHeight = curHeight;
}

public static void main(String[] args) {
Main main = new Main();
main.drop(2);
System.out.println("Total height is " + main.getTotalHeight());
System.out.println("Current height is " + main.getCurHeight());
}
}

应该是  sum /= 2 的运算吧

不太懂，ctrl c+ctrl v