int fun(int *pa,int *pb)
{
int out=(*pa)*(*pb);
return out;
}
int _tmain(int argc, _TCHAR* argv[])
{
int a=10,b=20;
int(*funn)(int*pa,int*pb);//第一步定義函數(shù)指針
funn=fun;//第二步,指針=函數(shù)名
int sum=funn(&a,&b);//第三步,函數(shù)指針操作被指函數(shù)
printf("%d\n",sum);