C++输入输出流重定向模板

#include <cstdio>
#include <iostream> 
using namespace std;

int main(){
	freopen("in.txt","r",stdin);
	freopen("out.txt","w",stdout); 
	//正常的逻辑代码
	
	fclose(stdin);
	fclose(stdout);
	return 0;
}