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4.º¯ÊýºÍÖ¸Õë
4.1. Ö¸Ïòº¯ÊýµÄÖ¸Õë
Ö¸Ïòº¯ÊýµÄÖ¸Õ뼴ͨ³£ËµµÄº¯ÊýÖ¸Õ룬ÕýÊÇÓÉÓÚÕâЩ¼ò³Æ£¬ËùÒÔËüºÍ·µ»ØÖ¸ÕëµÄº¯Êý£¨Ö¸Õ뺯Êý£©ÈÝÒ×»ìÏý£¬¶øÇÒÒ²ÓÉÓÚд·¨ÉϱȽÏÏà½ü£¬¾ÍÏñÊý×éÖ¸Õë(int (*p)[4])ºÍÖ¸ÕëÊý×é(int *p[4])Ò»Ñù£¬Ç°Õß±íʾָÕë±äÁ¿pÖ¸ÏòÒ»¸öһάÊý×飬Õâ¸öÊý×麬ÓÐ4¸öintÐͱäÁ¿£¬ËùÒÔp++ºó£¬P¾ÍÖ¸ÏòÏÂÒ»¸öһάÊý×飻¶øºóÕß±íʾpÊÇÒ»¸öÊý×飬º¬ÓÐ4¸öÖ¸ÏòintÐÍÊýµÄÖ¸Õë·Ö±ðΪp[0],p[1],p[2],p[3]¡£
int max(int x,int y){
}
int (*ps)()=swap; //¶¨ÒåÁËÒ»¸öº¯ÊýÖ¸ÕëÖ¸Ïòswapº¯Êý
int (*ps)(int x,int y); //Ò²¶¨ÒåÁËÒ»¸öº¯ÊýÖ¸Õë¡£
µ÷ÓÃʱ£ºmax=max(a,b);»òmax=(*ps)(a,b);
4.2. ·µ»ØÖ¸ÕëµÄº¯Êý
char *getString(char strings[][10],int n){
return strings[i] //¼ÙÉè·µ»Ø××Ö·û´®
}
µ÷ÓÃʱ£ºchar *p=getString(strings,4);
printf("%s\n",p);
4.3. mainº¯Êý
mainº¯ÊýÊÇCÓïÑÔÖÐ×îÖØÒªµÄÒ»¸öº¯Êý£¬µ«ÊÇͨ³£ÔÚ±àд³ÌÐòµÄʱºòºÜÉÙÓõ½Ê¹ÓòÎÊýµÄmain(int argc,char *args[])º¯Êý£¬ÏÂÃæÊÇÒ»¸öÀý×Ó
int main(int argc,char *args[]){
//char *args[]ÐβÎÊÇÒ»¸öÖ¸ÕëÊý×飬ÿ¸öÔªËØ¶¼ÊÇÒ»¸öcharÐÍÖ¸Õ룬ËùÒÔ¿ÉÒÔÖ¸ÏòÒ»¸öÊý×é
while(argc-->1){
printf("%s\n",*(++args));
}
}
5.½á¹¹Ìå
¼òµ¥µÄ½á¹¹ÌåºÜ¼òµ¥£¬Òª×¢ÒâÇø·ÖµÄÊÇÖ¸Ïò½á¹¹ÌåµÄÖ¸Õ룬Èçstruct PEOPLE *p=people1;ÕâÀï¼ÙÉèPEOPLEÊǶ¨ÒåµÄÒ»¸ö½á¹¹ÌåÀàÐÍ£¬people1ÊÇPEOPLEÀàÐ͵ĽṹÌå±äÁ¿¡£
ʹÓÃÖ¸Õëµ÷ÓýṹʱÓÐÁ½ÖÖ·½·¨£º1)(*p).name»ò2)p->name¡£
ʹÓýṹÌåÀ´±àÐ´ÃæÏò¶ÔÏóµÄ´úÂë¡£
Àý×Ó£º
#include<stdio.h>
#include<stdlib.h>
typedef struct node{
int x;
int y;
void (*print)();
}NODE;
void print();
NODE *initNODE(){
NODE *node=(NODE*)malloc(sizeof(NODE));
node->print=print;
return node;
}
NODE *node=NULL;
int main(){
node=initNODE(
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