13_19.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 *fp1,*fp2;
   char  ch;
   if(argc!=3)
    {  printf("The number of argument is error!");
       exit(0);
    }
  if((fp1=fopen(argv[1],"r"))==NULL)
     {   printf("Cann't Open File %s",argv[1]);
	 exit(0);
     }
   if((fp2=fopen(argv[2],"w"))==NULL)
      {   printf("Cann't create File %s",argv[2]);
	       exit(0);
      }
   while(!feof(fp1))
   {   ch=fgetc(fp1);
       fputc(ch,fp2);
   }
   fclose(fp1); fclose(fp2);
}