C 为什么赢了';这些数字不是说对了吗?
由于您已经将地址作为参数传递到函数GetData中,因此需要替换函数:C 为什么赢了';这些数字不是说对了吗?,c,C,由于您已经将地址作为参数传递到函数GetData中,因此需要替换函数: int GetData (int* PR, int* IY, int* NY); double monthly_payment (double MP, int PR, double IM, double Q); void print_amortization_table (int PR, int IY, double IM, int NY, int NM, double MP); int main (void) {
int GetData (int* PR, int* IY, int* NY);
double monthly_payment (double MP, int PR, double IM, double Q);
void print_amortization_table (int PR, int IY, double IM, int NY, int NM, double MP);
int main (void)
{
int NY; //number of years
int NM; //number of months
int IY; //interest/year
int PR; //principle
double P; //value of (1+IM)^NM
double X; //value of (1+IM)
double Q; //value of (p/(p-1))
double IM; //interest/month
double MP; //monthly payment
GetData (&PR, &IY, &NY); //call to GetData
IM = (IY / 12) / 100; //calculations
X = (1 + IM);
NM = (NY * 12);
P = pow(X, NM);
Q = (P / (P-1));
MP = (PR * IM * Q); //TEMP--- TO BE REMOVED
printf("NY NM IY PR IM MP\n"); //TEMP--- TO BE REMOVED
printf("%d %d %d %d %lf %lf\n", NY, NM, IY, PR, IM, MP); //TEMP--- TO BE REMOVED
//monthly_payment (MP, PR, IM, Q); call to monthly payment
//print_amortization_table (PR, IY, IM, NY, NM, MP); call to print_amortization_table
}
int GetData (int* PR, int* IY, int* NY)
{
printf("Amount of the loan (Principle)? ");
scanf("%d", &PR);
printf("Interest rate / year (percent)? ");
scanf("%d", &IY);
printf("Number of years? ");
scanf("%d", &NY);
}
您还没有发布错误的描述。顺便说一句,我注意到您将利率(通常是一个真正的十进制数字)存储为整数。这是故意的吗?对不起,我对这个网站还不太熟悉,我想我不是很会思考。是的,这是故意的,因为它的意思是以百分比来解读。至于整体上有什么问题,当我运行程序时,所有的数字都非常奇怪。当我在GetData函数中输入5000、11、1时,打印行显示“1199870328 1513542048 0 4195523 0.000000-nan”,我找不到我做错了什么。如果您的编译器没有告诉您您正在错误地调用
scanf()
,您需要找到一种方法让编译器告诉您这些错误,或者你需要一个更好的编译器。GCC至少会告诉您在GetData()
函数中传递了不正确的类型。注意:(IY/12)/100
是用整数数学执行的。
int GetData (int* PR, int* IY, int* NY)
{
printf("Amount of the loan (Principle)? ");
scanf("%d", PR); //PR is the address already
printf("Interest rate / year (percent)? ");
scanf("%d", IY); //IY is the address already
printf("Number of years? ");
scanf("%d", NY); //NY is the address already
}