代码没错啊
#include<stdio.h>#include<math.h>
int main()
{
float price,area,yir,mir;//单价,面积,年利润,月利润
float interest,loan;//利息,贷款总额
float ave_repay,down_payment;//月均还款,首期付款
float total_price,total_repay;//房贷总额,还款总额
float ratio,time;//按揭成数,按揭年数
printf("请输入单价(元/平方):");
scanf("%f",&price);
printf("请输入面积:");
scanf("%f",&area);
printf("请输入按揭成数:");
scanf("%d",&ratio);
printf("请输入按揭年数:");
scanf("%d",&time);
printf("请输入当前基准年利润:");
scanf("%f",&yir);
mir=yir/100/12;//年利润需要除以100得到,因为用户输入的是5.4(%),而不是0.054
time=time*12;
total_price=price*area;
loan=total_price*ratio/10;//这里不能写成(ratio/10),否则结果变为0
ave_repay=loan*mir*pow((1+mir),time)/(pow((1+mir),time)-1);
interest=ave_repay*time-loan;
total_repay=loan+interest;
down_payment=total_price*(1-(float)ratio/10);//制转换ratio为浮点型
printf("========== 报告结果 ==========\n");
printf("房款总额:%.2f元\n",total_price);
printf("首期付款:%.2f元\n",down_payment);
printf("贷款总额:%.2f元\n",loan);
printf("还款总额:%.2f元\n",total_repay);
printf("支付利息:%.2f元\n",interest);
printf("月均还款:%.2f元\n",ave_repay);
return 0;
}
把17和19行都改成%f #include<stdio.h>
#include<math.h>
int main()
{
float price, area, yir, mir;//单价,面积,年利润,月利润
float interest, loan;//利息,贷款总额
float ave_repay, down_payment;//月均还款,首期付款
float total_price, total_repay;//房贷总额,还款总额
float ratio, time;//按揭成数,按揭年数
printf("请输入单价(元/平方):");
scanf_s("%f", &price);
printf("请输入面积:");
scanf_s("%f", &area);
printf("请输入按揭成数:");
scanf_s("%d", &ratio);
printf("请输入按揭年数:");
scanf_s("%d", &time);
printf("请输入当前基准年利润:");
scanf_s("%f", &yir);
mir = yir / 100 / 12;//年利润需要除以100得到,因为用户输入的是5.4(%),而不是0.054
time = time * 12;
total_price = price*area;
loan = total_price*ratio / 10;//这里不能写成(ratio/10),否则结果变为0
ave_repay = loan*mir*pow((1 + mir), time) / (pow((1 + mir), time) - 1);
interest = ave_repay*time - loan;
total_repay = loan + interest;
down_payment = total_price*(1 - (float)ratio / 10);//制转换ratio为浮点型
printf("========== 报告结果 ==========\n");
printf("房款总额:%.2f元\n", total_price);
printf("首期付款:%.2f元\n", down_payment);
printf("贷款总额:%.2f元\n", loan);
printf("还款总额:%.2f元\n", total_repay);
printf("支付利息:%.2f元\n", interest);
printf("月均还款:%.2f元\n", ave_repay);
return 0;
}
BngThea 发表于 2017-12-17 21:32
把17和19行都改成%f
谢谢了
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