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#include<stdio.h>
#include<math.h>
int main()
{
float price,area,yir,mir;//单价 面积 年利率 月利率
float interest,loan;// 利息 贷款总额
float ave_repay,down_payment;//月均还款 首付款
float total_price,total_repay;//房价总额 还款总额
int 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("%f",&ratio);
printf("请输入按揭年数:");
scanf("%d",&time);
printf("请输入当前基准年利率:");
scanf("%f",&yir);
mir = yir/100/12;//年利率需要除以100得到,因为用户输入是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)否则结果会变成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);//强制转换ratio为浮点型
printf("===报告结果===\n");
printf("房价总额:%.2f\n",total_price) ;
printf("首期付款:%.2f\n",down_payment);
printf("贷款总额:%.2f\n",loan);
printf("还款总额:%.2f\n",total_repay);
printf("支付利息:%.2f\n",interest);
printf("月均还款:%.2f\n",ave_repay);
return 0;
} 怎么计算不对!
#include<stdio.h>
#include<math.h>
int main()
{
float price, area, yir, mir;//单价 面积 年利率 月利率
float interest, loan;// 利息 贷款总额
float ave_repay, down_payment;//月均还款 首付款
float total_price, total_repay;//房价总额 还款总额
int 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); // 错误在此处,按揭成数定义为 int 型,控制符应为 %d
printf("请输入按揭年数:");
scanf("%d",&time);
printf("请输入当前基准年利率:");
scanf("%f",&yir);
mir = yir / 100 / 12;//年利率需要除以100得到,因为用户输入是5.4(%),而不是0.054
time = time * 12;
total_price = price * area;
loan = total_price * ratio / 10;
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 / 10.0);//强制转换ratio为浮点型
printf("===报告结果===\n");
printf("房价总额:%.2f\n", total_price);
printf("首期付款:%.2f\n", down_payment);
printf("贷款总额:%.2f\n", loan);
printf("还款总额:%.2f\n", total_repay);
printf("支付利息:%.2f\n", interest);
printf("月均还款:%.2f\n", ave_repay);
return 0;
}
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