重点考察“指向函数的指针”

#include <stdio.h>
int max(int x,int y){
	int z;
	if(x>y)
		z=x;
	else
		z=y;
	return z;
}
int min(int x,int y){
	int z;
	if(x<y)
		z=x;
	else
		z=y;
	return z;
}
int main(){
	int (*p)(int,int); //定义指向函数的指针
	int a,b,c,n;
	printf("please enter a and b:");
	scanf("%d,%d",&a,&b);
	printf("please choose 1 or 2:");
	scanf("%d",&n);
	if(n==1)
		p=max;
	else if(n==2)
		p=min;
	c=(*p)(a,b);
	if(n==1)
		printf("max=%d",c);
	else
		printf("min=%d",c);
	return 0;
}