首先： scanf函数（％79 [^ / N]，文件名）; 应 scanf函数（％79 [^ \\ n]，文件名）; ，***使用与fgets（）。

二错字错：拼错 == 按 = 在如果（）状态

 如果（NUM [K] = hgPl）{//它发现谁得分最高
 // ^ =错误
 

应该是：

 如果（NUM [K] == hgPl）{//它发现谁得分最高
 

编辑：

错误while循环。

 的fscanf（数据文件，（LG％，％S），＆安培;比分[K]，和放大器;名称[K]）;
// ^ ^ ^ ^删除
 

应该是：

 的fscanf（数据文件，LG％14S％，＆安培;比分[K]，名称[K]）;
 

和增量 K 在while循环。在的printf（％6.1F％S \\ n，得分[K]，名称[K]）; 。

My code below reads a file in C.It displays the file, the average score, maximum score,and the names of all the students who earned the maximum score. The exam scores(0-100 format to 1 decimal place and use a field width of columns) are stored in an array and the names(name and last name limited to 15 characters) are stored in a 2-dimensional array of characters that is parallel to the scores array. My problems are:

1) The code doesn't read(print) the file properly (I think is related to fscanf and the arrays).

2) My two functions don't print the results.

Any suggestion is appreciated, thanks.

#include "tools.h"
#define MAX 30                  // Maximum number of students
int computeMax(double stSco[], int numSt);  // Gets the average and highest
                                            // score
void outputBest(double num[], char nameHg[][15], int hgPl, int totStu);

int main()
{
    double score[MAX];
    char name[MAX][15];
    char fileName[80];
    int k, count = 0, hgCt;
    stream dataFile;
    banner();
    printf("Type the name of file you want to read\n");
    scanf("%79[^/n]", fileName);
    dataFile = fopen(fileName, "r");
    if (dataFile == NULL)
    {
        fatal("Cannot open %s for input", fileName);
    }
    while (!feof(dataFile))
    {
        fscanf(dataFile, "(%lg,%s)", &score[k], &name[k]);
        printf("%6.1f %s\n", score[k], name[k]);
        count++;                // It counts how many students there are
    }
    hgCt = computeMax(score, count);    // Stores the value sent by the
                                        // function
    outputBest(score, name, hgCt, count);
    fclose(dataFile);
    bye();
    return 0;
}

int computeMax(double stSco[], int numSt)
{
    int k, maxScore = 0, sum = 0;
    double maximum = 0, average = 0;

    for (k = 0; k < numSt; k++)
    {
        sum += stSco[k];        // It sums all scores
        if (stSco[k] > maximum)
        {
            maximum = stSco[k];
            maxScore = k;       // Stores the index of the maximum score
        }
    }
    average = sum / numSt;
    printf("The average score is %d\n", average);
    printf("The maximum score is %d\n", maximum);
    return maxScore;
}

void outputBest(double num[], char nameHg[][15], int hgPl, int totStu)
{
    int k;
    for (k = 0; k < totStu; k++)
    {
        if (num[k] = hgPl)
        {                       // It finds who has the highest score
            printf("%s got the highest score\n", nameHg[k]);
        }
    }
}

First: scanf("%79[^/n]",fileName); should be scanf("%79[^\n]",fileName);, better to use fgets().

Second typo mistake: misspelled == by = in if() condition

 if(num[k]=hgPl){ //It finds who has the highest score
 //       ^ = wrong 

should be:

 if(num[k] == hgPl){ //It finds who has the highest score

Edit:

Error in while loop..

fscanf(dataFile, "(%lg,%s)", &score[k], &name[k]);
//                ^   ^  ^  remove      ^

should be:

fscanf(dataFile, "%lg%14s", &score[k], name[k]);

and increment k in while loop. after printf("%6.1f %s\n", score[k], name[k]);.