printer.c

里面包含很多c语言的源码

/* Demonstrates printer output. */
/* stdprn is not ANSI Standard */
#include <stdio.h>

int main( void )
{
    float f = 2.0134;

    fprintf(stdprn, "\nThis message is printed.\r\n");
    fprintf(stdprn, "And now some numbers:\r\n");
    fprintf(stdprn, "The square of %f is %f.", f, f*f);

    /* Send a form feed. */
    fprintf(stdprn, "\f");

    return 0;
}