解答28-2

#include <stdio.h>
int main(void) {
    int a;
    FILE *t;
    if((t=fopen("aa.txt","r"))==NULL) {
        printf("オープン失敗\n");
        return 1;
    }
    while(fscanf(t,"%d",&a)!=EOF) printf("%d\n",a);
    fclose(t);
    return 0;
}