如何更正第13行中的类型不匹配错误？ [英] How Do I Correct The Type Mismatch Error In Line 13?

问题描述

#include<stdio.h>
float avg_mileage(float start_mileage,float end_mileage);
void main()
{ float start_mileage,end_mileage,avg;
printf("Enter the starting mileage\n");
scanf("%f",&start_mileage);
printf("Enter Ending Mileage\n");
scanf("%f",&end_mileage);
avg=average_mileage(start_mileage,end_mileage);
printf("%fThe average mileage is\n", avg);
}
float average_mileage(float start_mileage,float end_mileage)
{float dt;
float total=1000;
float avg;
dt=start_mileage-end_mileage;
avg=dt/total;
return avg;
}

推荐答案

您很高兴忽略 C 编程语言规则，例如声明中的函数 name 必须匹配定义中的那个。尝试：

You are happily ignoring the C programming language rules, for instance that function name in the declaration must match the one in the definition. Try:

#include<stdio.h>
float average_mileage(float start_mileage,float end_mileage);
int main()
{ float start_mileage,end_mileage,avg;
printf("Enter the starting mileage\n");
scanf("%f",&start_mileage);
printf("Enter Ending Mileage\n");
scanf("%f",&end_mileage);
avg=average_mileage(start_mileage,end_mileage);
printf("The average mileage is %f\n", avg);
return 0;
}
float average_mileage(float start_mileage,float end_mileage)
{float dt;
float total=1000;
float avg;
dt=start_mileage-end_mileage;
avg=dt/total;
return avg;
}

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