下标值既不是数组也不是指针函数错误 [英] subscripted value is neither array nor pointer function error

问题描述

处理一个程序，它将从几个文件中读取数据，将其扫描到数组中，并最终在屏幕上打印13个名称，其中每个数字旁边都有4个数字，并在这些数字之后打上一个字母图表。

Working on a program that will read data from a few files, scan it into arrays, and eventually print to the screen 13 names, with 4 numbers next to each of them, and a letter after those numbers in a kind of grading chart.

然而，我正在使用其中一个函数的问题，其目的是计算平均值。它将一个学生测试的所有分数合并为一个单一值，然后将其除以4以找出平均值，然后将该平均值存储到不同数组的一个元素中。

However I'm having a problem with one of the functions I'm using whose purpose is to calculate the averages. It combines all of the scores for one students tests into a single value and then divides it by 4 to find the average, then stores that average into one element of a different array.

函数调用是：

The function call is:

avg(&scores, &average);

分数和平均值是这样定义的：

Scores and Average are defined like this:

int scores[13][4];
float average[13];

并且使用此循环填充了分数：

对于（j = 0;j≤4; j ++）$ b $（i = 0;i≤13; i ++）
{
）来说，

and scores has been populated using this loop:

for(i=0; i<=13; i++)
{
    for(j=0; j<=4; j++)
    {
    fscanf(score, "%d", &scores[i][j]);
    }
}
fclose(score);

仅供参考，所使用的文件打开语句为：

for reference, the file opening statement used is:

FILE *student, *score;
score = fopen("scores.dat", "r");

函数本身如下所示：

The function itself looks like this:

void avg(int *scores, float *average)
{
int total1 = scores[0][0] + scores[0][1] + scores[0][2] + scores[0][3];
int total2 = scores[1][0] + scores[1][1] + scores[1][2] + scores[1][3];
int total3 = scores[2][0] + scores[2][1] + scores[2][2] + scores[2][3];
int total4 = scores[3][0] + scores[3][1] + scores[3][2] + scores[3][3];
int total5 = scores[4][0] + scores[4][1] + scores[4][2] + scores[4][3];
int total6 = scores[5][0] + scores[5][1] + scores[5][2] + scores[5][3];
int total7 = scores[6][0] + scores[6][1] + scores[6][2] + scores[6][3];
int total8 = scores[7][0] + scores[7][1] + scores[7][2] + scores[7][3];
int total9 = scores[8][0] + scores[8][1] + scores[8][2] + scores[8][3];
int total10 = scores[9][0] + scores[9][1] + scores[9][2] + scores[9][3];
int total11 = scores[10][0] + scores[10][1] + scores[10][2] + scores[10][3];
int total12 = scores[11][0] + scores[11][1] + scores[11][2] + scores[11][3];
int total13=  scores[12][0] + scores[12][1] + scores[12][2] + scores[12][3];

float avg1 = total1 / 4;
float avg2 = total2 / 4;
float avg3 = total3 / 4;
float avg4 = total4 / 4;
float avg5 = total5 / 4;
float avg6 = total6 / 4;
float avg7 = total7 / 4;
float avg8 = total8 / 4;
float avg9 = total9 / 4;
float avg10 = total10 / 4;
float avg11 = total11 / 4;
float avg12 = total12 / 4;
float avg13 = total13 / 4;

return;
}

这并不完整，我仍然必须告诉函数将avg1-avg13到阵列。但是，一旦我解决了这个错误，我会继续努力。

It's not complete, I still have to tell the function to assign avg1-avg13 to the array. But I'll be working on that once I fix this error.

试图按照原样运行程序给了我很多错误，所有这些错误都基本相同：

Attempting to run the program as is gives me a lot of errors, all of which are basically the same:

ghp11.c: In function 'avg':
ghp11.c:127: error: subscripted value is neither array nor pointer

我不确定如何解决它，以便它正常工作。我试图将4个数组值合并为一个整数值并将其存储在total1中，等等;以便它们可以被平均出来并存储。

I'm not exactly sure how to fix it so that it works properly. I'm trying to combine 4 of the array values into one integer value and store it in total1, etc; so that they can be averaged out and stored.

推荐答案

要将2D数组传递给函数，必须编写函数像这样定义

to pass your 2D array to a function, you have to write the function definition like this

void avg( int score[][4], float *average );

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