while (1) { HAL_GPIO_TogglePin(GPIOF,LED_Pin); HAL_RTC_GetTime (&hrtc,&sTime,RTC_FORMAT_BIN);//必须先读time，后读date，否则会出现刷新不及时 HAL_RTC_GetDate (&hrtc,&sDate,RTC_FORMAT_BIN); sprintf(time_str,"%02d:%02d:%02d",sTime.Hours,sTime.Minutes,sTime.Seconds); sprintf(date_str,"20%02d-%02d-%02d %d",sDate.Year,sDate.Month,sDate.Date,sDate.WeekDay); LCD_ShowString(10,30,tftlcd_data.width,tftlcd_data.height,24,date_str); LCD_ShowString(10,60,tftlcd_data.width,tftlcd_data.height,24,time_str); delay_ms(500); /* USER CODE END WHILE */ /* USER CODE BEGIN 3 */ }根据这段代码写一个四个按键调节时间的代码

好的，我会为您解答。

首先，我们需要在代码中添加对按键的识别和处理。您可以使用STM32的HAL库中的GPIO功能来实现。具体来说，您需要定义四个按键的GPIO引脚和按键状态变量，并在while循环中不断地读取按键状态，根据按键状态来调节时间。下面是一份示例代码：

#include "main.h"
#include "stdio.h"

/* Define GPIO pins for buttons */
#define BUTTON1_Pin GPIO_PIN_0
#define BUTTON1_GPIO_Port GPIOA
#define BUTTON2_Pin GPIO_PIN_1
#define BUTTON2_GPIO_Port GPIOA
#define BUTTON3_Pin GPIO_PIN_2
#define BUTTON3_GPIO_Port GPIOA
#define BUTTON4_Pin GPIO_PIN_3
#define BUTTON4_GPIO_Port GPIOA

/* Define variables for button states */
uint8_t button1_state = 0;
uint8_t button2_state = 0;
uint8_t button3_state = 0;
uint8_t button4_state = 0;

/* Function to handle button press */
void handle_button_press(uint8_t button_number) {
    /* TODO: Implement time adjustment logic here */
}

int main(void)
{
    /* Initialize HAL library */
    HAL_Init();

    /* Initialize RTC */
    /* TODO: Add RTC initialization code here */

    /* Initialize GPIO pins for buttons */
    __HAL_RCC_GPIOA_CLK_ENABLE();
    GPIO_InitTypeDef GPIO_InitStruct;
    GPIO_InitStruct.Pin = BUTTON1_Pin | BUTTON2_Pin | BUTTON3_Pin | BUTTON4_Pin;
    GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
    GPIO_InitStruct.Pull = GPIO_PULLUP;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

    /* Main loop */
    while (1)
    {
        /* Read button states */
        button1_state = HAL_GPIO_ReadPin(BUTTON1_GPIO_Port, BUTTON1_Pin);
        button2_state = HAL_GPIO_ReadPin(BUTTON2_GPIO_Port, BUTTON2_Pin);
        button3_state = HAL_GPIO_ReadPin(BUTTON3_GPIO_Port, BUTTON3_Pin);
        button4_state = HAL_GPIO_ReadPin(BUTTON4_GPIO_Port, BUTTON4_Pin);

        /* Handle button presses */
        if (button1_state == GPIO_PIN_RESET) {
            handle_button_press(1);
        }
        if (button2_state == GPIO_PIN_RESET) {
            handle_button_press(2);
        }
        if (button3_state == GPIO_PIN_RESET) {
            handle_button_press(3);
        }
        if (button4_state == GPIO_PIN_RESET) {
            handle_button_press(4);
        }

        /* Toggle LED */
        HAL_GPIO_TogglePin(GPIOF, LED_Pin);

        /* Update time and date on LCD */
        HAL_RTC_GetTime(&hrtc, &sTime, RTC_FORMAT_BIN);
        HAL_RTC_GetDate(&hrtc, &sDate, RTC_FORMAT_BIN);
        sprintf(time_str, "%02d:%02d:%02d", sTime.Hours, sTime.Minutes, sTime.Seconds);
        sprintf(date_str, "20%02d-%02d-%02d  %d", sDate.Year, sDate.Month, sDate.Date, sDate.WeekDay);
        LCD_ShowString(10, 30, tftlcd_data.width, tftlcd_data.height, 24, date_str);
        LCD_ShowString(10, 60, tftlcd_data.width, tftlcd_data.height, 24, time_str);

        /* Delay for 500ms */
        delay_ms(500);
    }
}

在上面的代码中，我们定义了四个按键的GPIO引脚和按键状态变量。在while循环中，我们不断地读取按键状态，并调用handle_button_press函数来处理按键事件。在handle_button_press函数中，您需要实现时间调节逻辑。例如，如果用户按下第一个按键，则您可以递增当前时间的小时数，等等。