关于oled多级菜单系统，一直报错main.c(83): error: #29: expected an expression

潜水的学徒 · 发表于 2020-8-15 11:01:00

一直报错，main.c(83): error:  #29: expected an expression程序如下

#include "led.h"
#include "delay.h"
#include "sys.h"
#include "usart.h"
#include "lcd.h"
//#include "adc.h"
//#include "timer.h"
//#include "pwm.h"
//#include "key.h"
//#include "pid.h"
#include "remote.h"
struct MenuItem
{
short MenuCount;
u8 *DisplayString;
void(*Subs)();
struct MenuItem *ChildrenMenus;
struct MenuItem *ParentMenus;
};
struct MenuItem MainMenu[3] = {
{ 3,"set1",NULL,NULL,NULL },
{ 3,"set2",NULL,NULL,NULL },
{ 3,"set3",NULL,NULL,NULL }
};
struct MenuItem Setmenu1[2]={
{ 2,"timeset1",NULL,NULL,MainMenu },
{ 2,"Voiceset1",NULL,NULL,MainMenu }};
struct MenuItem Setmenu2[2] = {
{ 2,"timeset2",NULL,NULL,MainMenu },
{ 2,"Voiceset2",NULL,NULL,MainMenu } };
struct MenuItem Setmenu11[2]={
{ 2,"timeset1.1",NULL,NULL,Setmenu1 },
{ 2,"Voiceset1.1",NULL,NULL,Setmenu1 }};
struct MenuItem* MenuPoint = MainMenu;
short selectItem;
      void display(struct MenuItem * MenuPoint,short selectItem)
{
   int i;
   int j;
   u16 x=30;
   u16 y=30;
      for ( i = 0; i < (selectItem-1); i++)
      {
         LCD_ShowString(x,y,200,16,16,MenuPoint[i].DisplayString);
         y+=30;
      }
      POINT_COLOR=BLACK;
      LCD_DrawRectangle(x-5,y-10,x+60,y+20);
      LCD_ShowString(x,y,200,16,16,MenuPoint[selectItem-1].DisplayString);
      y+=30;
      for ( j= selectItem; j < MenuPoint->MenuCount; j++)
      {
         LCD_ShowString(x,y,200,16,16,MenuPoint[j].DisplayString);
         y+=30;
      }
}
int main(void)
{
u8 key=0;
delay_init();
uart_init(9600);
   LCD_Init();
Remote_Init();
POINT_COLOR=RED;//
MainMenu[0].ChildrenMenus = Setmenu1;
MainMenu[1].ChildrenMenus = Setmenu2;
Setmenu1[0].ChildrenMenus=Setmenu11;
selectItem =1;
display(MenuPoint,selectItem);
while(1)
{
      key=Remote_Scan();
      delay_ms(10);
   switch(key)
{
      case 98:{//?
      LCD_Clear(WHITE);
            if (selectItem == 1) selectItem = MenuPoint->MenuCount;
            else selectItem--;
            display(MenuPoint, selectItem);
         key=0;
            };break;
      case 168:{/                               （就是这里报错~就是这里报错~就是这里报错）
         LCD_Clear(WHITE);
            if (selectItem == MenuPoint->MenuCount) selectItem = 1;
               else selectItem++;
               display(MenuPoint, selectItem);
               key=0;
               };break;
      case 194:{
         if (MenuPoint[selectItem - 1].ChildrenMenus != NULL)
               {
                  LCD_Clear(WHITE);
                  MenuPoint = MenuPoint[selectItem - 1].ChildrenMenus;
                  selectItem = 1;
                  display(MenuPoint, selectItem);
               }
               key=0;
      };break;
      case 34:{//?  ??
      if (MenuPoint[selectItem - 1].ParentMenus != NULL)
               {
                  LCD_Clear(WHITE);
                  MenuPoint = MenuPoint[selectItem - 1].ParentMenus;
                  selectItem = 1;
                  display(MenuPoint, selectItem);
               }
               key=0;
      };break;
   }

   delay_ms(10);
  }
}