代码:

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int count =0;
void fun1(void)
{
	count++;

	static int f1=0;
	f1++;
	printf("[%d] call fun1: %d\n",count,f1);
}
void fun2(void)
{
	count++;

	static int f2=0;
	f2++;
	printf("[%d] call fun2: %d\n",count,f2);
}

void do_it(void (*f1)(void),void (*f2)(void),unsigned char rule)
{
	/* 从右往左依次判断rule的每一位，如1则执行f1(),否则执行f2() */

	unsigned char b=1;
	int i;

	for(i=1;i<=8;i++) {
		if(rule&b)
			f1();
		else
			f2();
		b<<=1;
	}
}

int main(void)
{
	unsigned char i=5;  //00000101b
	do_it(fun1,fun2,i);

	return 1;
}

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