文件输入输出（非重定向）

#include "stdafx.h"#include<iostream>#include<math.h>#include<string>#include<time.h>using namespace std;#define INF 1000000000int _tmain(int argc, _TCHAR* argv[]){ FILE *fin, *fout; fin = fopen("data.in", "rb"); fout = fopen("data.out", "wb"); int x, n = 0, min = INF, max = -INF, s = 0; while(fscanf(fin, "%d", &x) == 1) { s += x; if(x < min) min = x; if(x > max) max = x; n++; } fprintf(fout, "%d %d %.3lf/n", min, max, (double)s/n); fclose(fin); fclose(fout); return 0;}