#include <stdio.h>
#include <stdlib.h>
int main() {
  FILE *p;
  char name[] = "wuzhenlin";
  int i;
  if ((p = fopen("D:\\myname.txt", "w")) == NULL) {
    printf("无法打开此文件\n");
    exit(0);
  }
  for (i = 0; i < 9; i++) {
    fputc(name[i], p);
    putchar(name[i]);
  }
  return 0;
}