Question

我修复了你们指出的问题（谢谢顺便说一句！）但是现在它给了我一个无限循环。我不明白为什么。每次while循环运行时，我的抵押贷款数量都会逐月减少...

#include <stdlib.h>


int main(){
    float MortgageLeft, InterestRate, MonthlyPayment, MonIntRate, AmountOwed;
    int Month=0;

    printf("What is the value left on the mortgage?\n");
    scanf("%f", &MortgageLeft);

    printf("What is the annual interest rate of the loan, in percent?\n");
    scanf("%f", &InterestRate);

    printf("What is the monthly payment?\n\n");
    scanf("%f", &MonthlyPayment);

    MonIntRate= (InterestRate/12)/100;

    printf("Month\t\t Payment\t\t Amount Owed");

    while (MortgageLeft>0){
        MortgageLeft=(MortgageLeft*MonIntRate)+MortgageLeft;
        if(MortgageLeft>MonthlyPayment)
        {
            MortgageLeft=MortgageLeft-MonthlyPayment;    
            Month++;
            printf("%d\t\t %.2f\t\t %.2f", Month, MonthlyPayment, MortgageLeft);
        }

}
    return 0;
}

Answer 1

你的while循环没有任何括号，所以它只执行循环中的下一个语句AmountOwed=(MortgageLeft*MonIntRate)+MortgageLeft;，它永远不会改变循环条件。无限循环意味着您永远不会到达if / else。

Answer 2

你不会离开While循环，直到MortgageLeft小于或等于零。在什么时候，While循环是MortgageLeft的值越来越小？

对于您的更新问题，当MortgageLeft小于或等于MonthlyPayment但仍然大于零时会发生什么？

Answer 3

在以下代码中，您要么缺少While循环的花括号和/或错过修改MortgageLeft的值

 while (MortgageLeft>0)
        AmountOwed=(MortgageLeft*MonIntRate)+MortgageLeft;
        if(AmountOwed>MonthlyPayment)
        {
            AmountOwed=AmountOwed-MonthlyPayment;    
            Month++;
            printf("%d\t\t %.2f\t\t %.2f", Month, MonthlyPayment, AmountOwed);
        }
        else
        {
            Month++;
            printf("%d\t\t %f\t\t 0", Month, AmountOwed);
    }

如果没有运行

3 个答案: