编写程序,某百货公司为了促销

#include <iostream>

using namespace std

int main()

{

float price

cout<<"输入原价:"<<endl

cin>>price

switch((int)price/1000)

{

case 5:price *=0.8break

case 4:

case 3:price *=0.85break

case 2:price *=0.9break

case 1:price *=0.95break

case 0:break

default:price *=0.8

}

cout<<"优惠价:"<<price<<endl

return 0

}

double p1=1000//头等舱

double p2=500//经济舱

double p3=0.0//票价

System.out.print("请输入您出行的月份：")

Scanner scan = new Scanner(System.in)

int a = scan.nextInt()

if(a==0&&a>12){

System.out.print("只能输入1-12月份：")

}else{

System.out.print("选择机舱头等舱1经济舱2：")

Scanner sc = new Scanner(System.in)

int aa = sc.nextInt()

if(aa!=0&&aa<3){

if(aa!=1)p3=p2else p3=p1

if(a>=4&&a<=10) p3=p3*0.5else p3=p3*0.4

System.out.println("票价为："+p3)

}else{

System.out.print("只能输入1或2：")

}

}

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