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楼主 |
发表于 2018-7-11 21:10:28
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#include <stdio.h>
#define FANQIE 3.7
#define JIELAN 7
#define XIQIN 1.3
#define KONGXINCAI 8
#define YANGCONG 2.4
#define YOUCAI 9
#define HUANGGUA 6.3
#define BAILUOBO 0.5
int main()
{
float price;
price = (2 * FANQIE + KONGXINCAI + YOUCAI) * 0.5; // 1斤 == 0.5公斤
printf("小明需要支付%.2f元\n", price);
price = (3 * XIQIN + 0.5 * YANGCONG + 5 * HUANGGUA) * 0.5;
printf("小红需要支付%.2f元\n", price);
price = (10 * HUANGGUA + 20 * BAILUOBO) * 0.5;
printf("小甲鱼需要支付%.2f元\n", price);
return 0;
}
float price; 这个是什么意思啊 price = (2 * FANQIE + KONGXINCAI + YOUCAI) * 0.5; // 1斤 == 0.5公斤 还有这行的0.5; // 1斤 == 0.5公斤 有是什么啊
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