题解 | #计算商场折扣#

import java.util.*;

public class Main {

public static void main(String[] args) {
    Scanner console = new Scanner(System.in);
    int price = console.nextInt();
    int cost = 0;

    //write your code here......
    if(price>0&&price<100){
        cost+=price;
    }else if(price>=100&&price<500){
        cost+=(int)price*0.9;
    }else if(price>=500&&price<2000){
        cost+=(int)price*0.8;
    }else if(price>=2000&&price<5000){
        cost+=(int)price*0.7;
    }else if(price>=5000){
        cost+=(int)price*0.6;
    }
    System.out.println(cost);
}

}

就是一道分类使用if选择判断的条件语句,在每个价格不同的段位强转一次就可以了