#include <stdio.h>
int main()
{
double S, discountedPrice;
printf("请输入顾客消费的金额(元):");
scanf("%lf", &S);
if (S >= 3000) {
discountedPrice = S * 0.7;
} else if (S >= 1000) {
discountedPrice = S * 0.75;
} else if (S >= 500) {
discountedPrice = S * 0.8;
} else if (S >= 300) {
discountedPrice = S * 0.9;
} else if (S >= 100) {
discountedPrice = S * 0.95;
} else {
discountedPrice = S; // 如果没有达到任何打折条件,则不打折
}
printf("实际支付的费用为:%.2lf元\n", discountedPrice);
return 0;
}
int main()
{
double S, discountedPrice;
printf("请输入顾客消费的金额(元):");
scanf("%lf", &S);
if (S >= 3000) {
discountedPrice = S * 0.7;
} else if (S >= 1000) {
discountedPrice = S * 0.75;
} else if (S >= 500) {
discountedPrice = S * 0.8;
} else if (S >= 300) {
discountedPrice = S * 0.9;
} else if (S >= 100) {
discountedPrice = S * 0.95;
} else {
discountedPrice = S; // 如果没有达到任何打折条件,则不打折
}
printf("实际支付的费用为:%.2lf元\n", discountedPrice);
return 0;
}