工厂模式的使用与测试，可做demo使用

#include "animal.h" #include <string.h> struct Animal *findUtilByName(char *str,struct Animal *phead) { struct Animal *tmp = phead; if(tmp == NULL) { printf("error in link!\n"); return NULL; } else { while(tmp != NULL) { if(strcmp(tmp->name,str) == 0) { return tmp; } tmp = tmp->next; } return NULL; } } int main() { char buf[128] = {'\0'}; struct Animal *phead = NULL; struct Animal *ptmp = NULL; phead = putCatInLink(phead); phead = putDogInLink(phead); phead = putPersonInLink(phead); phead = putmaInLink(phead); while(1) { printf("please input:Tom,ahuang,ma,huyu\n"); scanf("%s",buf); ptmp = findUtilByName(buf,phead); if(ptmp != NULL) { ptmp->pbeat(); ptmp->peat(); } memset(buf,'\0',sizeof(buf)); } return 0; }