09-28.txt

C++完美演泽程序 C++完美演泽程序

/* 范例：9-28 */
#include <stdio.h>
#include <stdlib.h>
void main(int argc,char *argv[])
{
  if(argc!=3)
  {
    printf("Syntax Error!\n\tp9-28 oldname newname");
    exit(1);
  }

  if((rename(argv[1],argv[2]))==-1)
    printf("File %s Cannot be renamed to %s\n",argv[1],argv[2]);
  else
    printf("Success rename %s to %s\n",argv[1],argv[2]);
}

程序执行结果：
D:\TC>p9-28 old.txt new.txt
Success rename old.txt to new.txt