reactos代码学习一日一记-----cat源代码(今天心情不错)

#include
#include
void usage(void);
int main(int argc, char* argv[])
{
   int i;
   FILE* in;
   char ch;
if(argc != 2)
{
 usage();
 
}
   for (i=1; i     {
 in = fopen(argv[i],"r");
 if (in == NULL)
   {
      printf("Failed to open file %s\n", argv[i]);
      return(0);
   }

 while ((ch = fgetc(in)) != EOF)
   {
      putchar(ch);
   }
 fclose(in);
     }
   return 0;
}
void usage(void)
{
 printf("Usage:\n\n\t\t Cat:\n\n\t\tCat File");
}