c - 我上次的平均计算有问题（读取文件并将值存储到数组中）

Question

#include <stdio.h>

int main(void)
{

    FILE *in;
    float day[365],sup[365],mich[365],huron[365],erie[365],ont[365],stclr[365]; 
    int i,j;
    float year; 
    float sup_sum,mich_sum,huron_sum,erie_sum,ont_sum,stclr_sum;
    float sup_avg,mich_avg,huron_avg,erie_avg,ont_avg,stclr_avg; 
    int counter = 0; 


    in = fopen("C:\\Users\\TEMP.DESKTOP-O4G383R.000\\Desktop\\CPS Term Project\\term_proj_data.txt","r"); 

    while ( !feof(in) )
    {

    for( i = 0; i < 2920; i++)
    {//outer for loop   

    for (j = 0; j < 8; j++)
    {//inner for loop 

    if (j == 0)         
    fscanf(in, "%f", &year);

    if (j == 1)         
    fscanf(in, "%f", &day[i]);

    if (j == 2)         
    fscanf(in, "%f", &sup[i]);

    if (j == 3)         
    fscanf(in, "%f", &mich[i]);

    if (j == 4)         
    fscanf(in, "%f", &huron[i]);

    if (j == 5)         
    fscanf(in, "%f", &erie[i]);

    if (j == 6)         
    fscanf(in, "%f", &ont[i]);

    if (j == 7)         
    fscanf(in, "%f", &stclr[i]);

    }//inner for loop 

    }//outer for loop 

    }

    printf("%.2f", stclr[5]);

    /*--------------Calculating averages----------------------*/

    //lake Superior 
    for (i = 0; i < 365; i++)
    {
    sup_sum += sup[i]; 
    counter++;
    }
    sup_avg = sup_sum / counter; 

    printf("\n\n Lake Superior temp avg:%f", sup_avg);
    counter = 0; 

    //lake Michigan 
    for (i = 0; i < 365; i++)
    {
    mich_sum += mich[i]; 
    counter++;
    }
    mich_avg = mich_sum / counter; 

    printf("\n\n Lake Michigan temp avg:%f", mich_avg);
    counter = 0; 

    //lake Huron 
    for (i = 0; i < 365; i++)
    {
    huron_sum += huron[i]; 
    counter++;
    }
    huron_avg = huron_sum / counter; 

    printf("\n\n Lake Huron temp avg:%f", huron_avg);
    counter = 0; 

    //lake Erie  
    for (i = 0; i < 365; i++)
    {
    erie_sum += erie[i]; 
    counter++;
    }
    erie_avg = erie_sum / counter; 

    printf("\n\n Lake Erie temp avg:%f", erie_avg);
    counter = 0; 

    //lake Ontario   
    for (i = 0; i < 365; i++)
    {
    ont_sum += ont[i]; 
    counter++;
    }
    ont_avg = ont_sum / counter; 

    printf("\n\n Lake Ontario temp avg:%f", ont_avg);
    counter = 0; 

    //lake St.Clair    
    for (i = 0; i < 365; i++)
    {
    stclr_sum += stclr[i]; 
    counter++;
    }
    stclr_avg = stclr_sum / counter; 

    printf("\n\n Lake St.Clair temp avg:%f", stclr_avg);
    counter = 0; 

    return 0;
}

我的程序的整个想法是从 txt 文件中读取值并将它们存储到数组中。然后我必须计算每个湖 365 天的平均温度。一切对我来说都很好，除了最后的平均温度给出了不正确的值。

在此处输入图像描述

我不太确定是什么原因造成的。我不是 C 语言专家。我现在是学习语言的学生。

标签： c