结构值未在主源文件中更新

button_key.h, button_key.h, lcd.h, mani.c 等

在button\u键中使用了结构。H并声明为

struct menu {
             uint8_t Hour;
             uint8_t Minute;
             uint8_t Second;
            };

在里面 main.c 源文件

#include "lcd.h"
#include "delay.h"
#include "button_key.h"

  struct menu s1= {0}; 
  struct menu *ptr; 

int main(void)
{   int a;

    ptr = &s1;

//some code//
menu_key_display (s1,menu_display);
LCD_DisplayNumber(10,(*ptr).Hour,2); // here not updating the structure value as per the code in button_key.c  only show zero (0)
  while(1);

  // tried also LCD_DisplayNumber(10,s1.Hour,2); also seems same reult.

}

结构用于 button_key.c

 void menu_key_display(struct menu s1,const char *menu_display[])
 {   //some cdoe here
       case 1: // set time
             { 
             LCD_Clear();
             LCD_GoToLine(0);
             LCD_DisplayString(menu_display[5]);
             LCD_GoToLine(1);
             LCD_DisplayString("  HH:MM:SS:PM/AM");
             UP_Down_Keyvalue(s1,2,4);            
              break;

             // some code 
 }