fscanf 不检索任何值

Question

我有一个包含 Space 个分隔值的文件例如：

6028    5   6
9813    2   10
10249   7   8
10478   8   8
10479   3   2
10516   6   3
10519   9   10
10525   3   7
10606   6   1
10611   6   9
10632   1   6
10638   9   4

而且我无法使用以下代码将它们检索到变量中：

#include <stdio.h>
#include <stdlib.h>
void ReadVector(int V[], int *N);
int CalcularAprovados(int V[], int N);


void ReadVector(int V[], int *N){
    FILE *f;
    f = fopen("dados4.txt", "r");
    if (f == NULL){
        printf("Error");
    }
    int nAluno, nTeste, nTrab;
    while(fscanf(f, "%d%d%d\n", &nAluno, &nTeste, &nTrab) == EOF){
        //fscanf(f, "%d %d %d", &nAluno, &nTeste, &nTrab);
        printf("%d %d %d\n", nAluno, nTeste, nTrab);
    }
    fclose(f);
}

int main(){
    int *V, N=0;
    ReadVector(&V[0], &N);
}

和

int nAluno, nTeste, nTrab;
    while(fscanf(f, "%d%d%d\n", &nAluno, &nTeste, &nTrab) == EOF){
        //fscanf(f, "%d %d %d", &nAluno, &nTeste, &nTrab);
        printf("%d %d %d\n", nAluno, nTeste, nTrab);
    }

不起作用我希望它更新变量内容，直到它到达文件末尾。

Answer 1

检查错误。应该是：

int status;
while((status = fscanf(f, "%d%d%d\n", &nAluno, &nTeste, &nTrab)) > 0) {
    if (status == 3) {
        printf("%d %d %d\n", nAluno, nTeste, nTrab);
    }
}

fscanf 不检索任何值

fscanf does not retrieve any value

c

loops

scanf

c99