stm32OLED多级菜单

//先定义按键功能结构体
typedef struct 
{
	char current_menu;
	char up_menu;
	char down_menu;
	char Enter_menu;
	void (* operate)();
	
}Menu_Button;

//菜单
Menu_Button const table[9]= 
{
	{0,0,1,3,(*Menu1)},//1
	{1,0,2,5,(*Menu2)},
	{2,1,2,7,(*Menu3)},
	
	{3,0,4,8,(*Menu4)},//1.1
	{4,3,4,4,(*Menu5)},
	
	{5,1,6,5,(*Menu4)},//1.2
	{6,5,6,6,(*Menu5)},
	
	{7,2,7,7,(*Show2)},//1.3
	
	{8,3,8,8,(*Fun1)}//1.1.1
};

//按键处理函数
void Key_pro()
{
	static char flag = 1;
	if(flag &&(keyup == 1 || keydown == 1 || keyenter == 1 || keyenter == 0 ))
	{
		flag = 0;
		if(keyup == 1)
		{
			func_index = table[func_index].up_menu;
			OLED_Clear();
			return;
		}
		if(keydown == 1)
		{
			func_index = table[func_index].down_menu;
			OLED_Clear();
			return;
		}
		if(keyenter == 0)
		{
			func_index = table[func_index].Enter_menu;
			OLED_Clear();
			return;
		}
	}
	else if(keyup == 0 && keydown == 0)
	{
		flag = 1;
	}


}