函数和指针

#include <stdio.h>

typedef unsigned char uchar;
typedef char *(*T)(int, int);

void f1()
{
	printf("helloworld!\n");
}

int f2()
{
	printf("helloworld1\n");
}

char *f3(int a, int b)
{
	printf("this is f3..\n");
}
	
int main()
{
	int (*pf)();    //定义一个函数指针
	char *(*p1)(int, int);
	T p2;

	//pf = f1;   //类型不兼容
	pf = f2;
	p1 = f3;    //p = &f3;

	pf();      //通过函数指针调用函数
	p1(1, 2);

	return 0;
}