8.1 C语言编译系统 main.c swap.c (1)#if1 (1)extern int buf 2]; (2)int buf 2]; (2)int *bufp0 buf; (3)#else (3)int *bufp1; (4)int buf12]={10,20}; (4)void swap() (5)#endif (5){ (6)void swap(); (6)int temp; (7)#define A buf 0] (⑦)bufp1=buf+1; (8)int main() (⑧)temp=*bufp0; (9){ (9)*bufp0 =*bufp1; (10)scanf("%d,%d",buf,buf+1); (10)*bufp1 temp; (11)} (11)swap()方 (12)printf("%d,%d",A,buf 1]); (13)return 0; (14)}8.1 C语言编译系统 main.c ( 1 ) #if 1 swap.c ( 1 ) #if 1 ( 1 ) extern int buf[ 2 ] ; (2) int buf[2]; ( 3 ) # l ( 1 ) extern int buf[ 2 ] ; (2) int *bufp0 = buf; ( 3 ) int *bufp 1 ; ( 3 ) # e lse (4) int buf[2] = {10,20}; ( 5 ) # dif ( 3 ) int *bufp 1 ; (4) void swap( ) ( 5 ) { ( 5 ) #endif (6) void swap(); ( 7 ) #d fi A b f[ 0 ] ( 5 ) { (6) int temp; ( 7)bufp 1 = buf+ 1 ; ( 7 ) #d efine A b uf[ 0 ] (8) int main( ) ( 9 ) { ( 7)bufp 1 buf+ 1 ; (8)temp = *bufp0; ( 9 ) *bufp 0 = *bufp 1 ; ( 9 ) { (10)scanf("%d, %d", buf, buf+1); (11) ( ) ( 9) bufp 0 bufp 1 ; (10)*bufp1 = temp; (11 ) } (11 )swap ( ) ; (12)printf("%d, %d", A, buf[1]); (13) t 0 ( ) } (13 )re turn 0 ; (14) }