c - 简单的无限while循环-c

我知道我应该自己调试。。。但相信我，我试过了，我很尴尬。我不明白为什么我的while循环是无限循环的。有人能帮忙吗？

#include <stdio.h>

int main ( void )
{
    double milesDriven;
    double gallonsUsed;
    double totalMilesDriven;
    double totalGallonsUsed;
    float milesPerGallon;
    float totalMpG;

printf( "%s", " Enter the gallons used (-1 to end): " );
scanf( "%i", &gallonsUsed);

printf( " Enter the miles driven: " );
scanf( "%i", &milesDriven);


while ( gallonsUsed != -1 || milesDriven != -1)
{
     totalGallonsUsed += gallonsUsed;
     totalMilesDriven += milesDriven;

     milesPerGallon = ( milesDriven / gallonsUsed );
     printf( " The miles/gallon for this tank was %f\n", milesPerGallon );

     printf( "%s", " Enter the gallons used (-1 to end): " );
     scanf( "%i", &gallonsUsed);

     printf( " Enter the miles driven: " );
     scanf( "%i", &milesDriven);

}


totalMpG = ( totalMilesDriven / totalGallonsUsed );
printf( " The overall average miles/gallon was %.6f\n ", totalMpG);
return 0;
}

最佳答案

乍一看，似乎您使用的是浮点数据类型，而您应该使用整数。

"%i" // expects an integer

尝试使用int数据类型，或将格式更改为"%lf"

关于c - 简单的无限while循环-c，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/18862318/