absread, abswirte :绝对磁盘扇区读、写数据 int absread(int drive, int nsects, int sectno, void *buffer); int abswrite(int drive, int nsects, in tsectno, void *buffer); /* absread example */ #include #include #include #include int main(void) { int i, strt, ch_out, sector; char buf; printf("Insert a diskette into drive A and press any key\n"); getch(); sector = 0; if (absread(0, 1, sector, &buf) != 0) { perror("Disk problem"); exit(1); } printf("Read OK\n"); strt = 3; for (i=0; i<80; i++) { ch_out = buf[strt+i]; putchar(ch_out); } printf("\n"); return(0); }