c/c++ | 重定向输入输出流 | freopen

#include <stdio.h>
#include <iostream>
#include <fstream>

int main(void)
{
    
   freopen("test0320.txt", "w+", stdout); 
   printf("This will go into a file.\n");
   std::cout<<"hello world, my name is zhangbuda, waht's your name ?"<<std::endl; 

   /* close the standard output stream */
   fclose(stdout);

   return 0;
}