13_6.cpp

C程序参考,简单易懂,是初学者不可少的参考资料

#include <stdio.h>
#include <process.h>
void main(int argc, char **argv)
{
  FILE *fp;
  char ch;
  if(argc!=2) {
    printf("Usage: mytype <filename>\n");
  }
  if((fp=fopen(argv[1], "r"))== NULL) {     
    printf("cann't open filename: %s\n", argv[1]);
exit(0);
  }
  while((ch=fgetc(fp))!=EOF) {              
    fputc(ch,  stdout);                     
  }
  fclose(fp);                              
}