public class Task_10101003_01 {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
double sum = 0; //总费用
double perPrice = 4.5;//超过2公里的单价
System.out.println("请输入行使的里程数:");
double mile = input.nextDouble();
if(mile>2) {
sum=8+(mile-2)*perPrice;
}else {
sum=8;
}
System.out.println("此次的价格为:"+sum);
}
}