package duoceshi.test;
public class Duoceshi {
public static float sum(float p, float q, int m, int n) {
float sum = 0f;
//如果购买的商品数量n小于套装里面的数量那么就买单支
if (n < m) {
sum = p * n;
}
//拿商品的单价和套装里面的单个商品价格比较,如果单价的价格更便宜则直接用单价购买
else if(p<(m/q)) {
sum = p * n;
}
else{
//先买套装,剩余数量不足套装的买单个
int t = n / m;
int d = n % m;
sum = t * q + d * d;
}
System.out.println("总共花费"+sum);
return sum;
}
public static void main(String[] args) {
Duoceshi.sum(2,30,40,178);
}
}
运行结果：
总共花费444.0
