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6鱼币
Why?为什么好像两个程序一模一样,但是却无法输出同样的结果
- #include <stdio.h>
- #include <math.h>
- #include <stdlib.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、首期付款
- float total_price, total_repay; // 房款总额、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);
- 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);
- system("pause");
- return 0;
- }
复制代码
- #include <stdio.h>
- #include <stdlib.h>
- #include <math.h>
- int main(void)
- {
- 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、首期付款
- float total_price, total_repay; //房贷总额、还款总额
- int ratio, time; //按揭成数、按揭年数
- printf("请输入单位(元/平方):"); // 6000
- scanf("%f", &price);
- printf("请输入面积:"); // 120
- scanf("%f", &area);
- printf("请输入按揭成数:"); // 7
- scanf("%f", &ratio);
- printf("请输入按揭年数:"); // 20
- scanf("%f", &time);
- printf("请输入当前基准年利率:"); // 5.4
- scanf("%f", &yir);
- time = time * 12;
- mir = yir / 100 / 12;
- total_price = price * area;
- loan = total_price * ratio / 10;
- ave_repay = loan * mir * pow((1 + mir), time) / (pow((1 + mir), time) - 1);
- interest = time * ave_repay - loan;
- total_repay = interest + loan;
- /*down_payment = total_price - loan;*/
- down_payment = total_price * (1 - (float)ratio / 10);
- printf("============报告结果============\n");
- printf("房贷总额:%.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("还贷总额:%.2f元\n", total_repay);
- printf("支付利息:%.2f元\n", interest);
- printf("月均还款:%.2f元\n", ave_repay);
- system("pause");
- return 0;
- }
复制代码
您的编译器难道没有给您任何提示吗?看看这些内容是不是有帮助 - test.c:17:17: warning: format specifies type 'float *' but the argument has type 'int *' [-Wformat]
- scanf("%f", &ratio);
- ~~ ^~~~~~
- %d
- test.c:19:17: warning: format specifies type 'float *' but the argument has type 'int *' [-Wformat]
- scanf("%f", &time);
- ~~ ^~~~~
- %d
- 2 warnings generated.
复制代码可以把警告选项开全一些,编译器不行可以考虑换一个
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您的编译器难道没有给您任何提示吗?看看这些内容是不是有帮助可以把警告选项开全一些,编译器不行可以考虑换一个
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