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wordpress建站linux,seo手機關鍵詞網(wǎng)址,簡單的網(wǎng)頁設計作品源碼,電子商務的發(fā)展現(xiàn)狀與趨勢目錄一、頁面切換內(nèi)容詳解 1.邏輯解釋 2.代碼詳解 code.c（內(nèi)含詳細講解） code.h main.c 3.效果圖片展示 ?編輯二、頁面選項高亮內(nèi)容詳解 1.邏輯解釋 2.讀入數(shù)據(jù) FIRST.第一種高亮類型 code.c（內(nèi)含代碼詳解） code.…

一、頁面切換內(nèi)容詳解

1.邏輯解釋

2.代碼詳解

code.c（內(nèi)含詳細講解）

code.h

main.c

3.效果圖片展示

?編輯

二、頁面選項高亮內(nèi)容詳解

1.邏輯解釋

2.讀入數(shù)據(jù)

FIRST.第一種高亮類型

code.c（內(nèi)含代碼詳解）

code.h

main.c

SECOND.第二種高亮類型

3.效果展示

開源代碼

一、頁面切換內(nèi)容詳解

1.邏輯解釋

首先通過?LCD_Clear(White)?函數(shù)將 LCD 屏幕清除為白色。
lcd_page?的值增加 1。
然后進行判斷，如果?lcd_page?達到 3，則將其重置為 0，實現(xiàn)頁面的循環(huán)切換。

當檢測到按鍵一被按下（Key_down==1）時：

count?的值增加 1。

這樣，通過按鍵二可以切換頁面，通過按鍵一可以使?count?值增加。

舉例來說：

初始時，lcd_page?為 0，count?為 0。
按下按鍵二一次，lcd_page?變?yōu)?1。
再按下按鍵二一次，lcd_page?變?yōu)?2。
接著按下按鍵二一次，lcd_page?變?yōu)?0，完成一次頁面循環(huán)。
同時在這個過程中，每按下一次按鍵一，count?值就增加 1。

2.代碼詳解

code.c（內(nèi)含詳細講解）

#include "headfile.h"void led_show(uint8_t led,uint8_t mode)
{
HAL_GPIO_WritePin(GPIOD,GPIO_PIN_2,GPIO_PIN_SET);if(mode)
HAL_GPIO_WritePin(GPIOC,GPIO_PIN_8<<(led-1),GPIO_PIN_RESET);else
HAL_GPIO_WritePin(GPIOC,GPIO_PIN_8<<(led -1),GPIO_PIN_RESET);HAL_GPIO_WritePin(GPIOD,GPIO_PIN_2,GPIO_PIN_RESET);}uint8_t Key_Scan(void)
{uint8_t Key_val=0;if(HAL_GPIO_ReadPin(GPIOB,GPIO_PIN_0)==GPIO_PIN_RESET){Key_val=1;}if(HAL_GPIO_ReadPin(GPIOB,GPIO_PIN_1)==GPIO_PIN_RESET){Key_val=2;}if(HAL_GPIO_ReadPin(GPIOB,GPIO_PIN_2)==GPIO_PIN_RESET){Key_val=3;}if(HAL_GPIO_ReadPin(GPIOA,GPIO_PIN_0)==GPIO_PIN_RESET){Key_val=4;}return Key_val;
}
extern uint8_t key_rval;
uint8_t Key_up,Key_down,key_old;
uint8_t count;
uint8_t  lcd_page;//定義一個變量存儲
void Key_Proc(void)	
{key_rval=Key_Scan();Key_down=key_rval&(key_rval^key_old);Key_up=~key_rval&(key_rval^key_old);key_old=key_rval;if(Key_down==2)//按鍵二切換頁面{ LCD_Clear(White);//清屏操作，不然會有殘影l(fā)cd_page++;//頁面加一if(lcd_page==3) lcd_page=0;//以為沒有l(wèi)cd_page==3，所以回到0}if(Key_down==1)//按鍵一數(shù)值加一{count++;//如果變量 Key_down 的值等于 1，則將變量 count 的值增加 1。
//這是一個簡單的條件判斷和操作，用于根據(jù)特定條件來改變某個變量的值。}}char buf[21];
void Lcd_proc(void)
{if(lcd_page==0){LCD_DisplayStringLine(Line1,(uint8_t*)"       jinke!       ");//這行代碼是將字符串 " jinke! " 強制轉(zhuǎn)換為指向 uint8_t 類型數(shù)據(jù)的指針。}if(lcd_page==1){sprintf(buf,"      count:%d      ",count);//"count:%d" 是格式字符串，其中 %d 表示要插入一個整數(shù)變量 count 。//執(zhí)行完這行代碼后，buf 中就會存儲一個包含 "count:" 和 count 的具體數(shù)值的字符串。LCD_DisplayStringLine(Line4,(uint8_t*)buf);//“LCD_DisplayStringLine(Line4, (uint8_t*)buf)” 表示在特定的行（Line4）上顯示字符串，//其中字符串的內(nèi)容來自于指向 uint8_t 類型的指針 buf 所指向的緩沖區(qū)。}if(lcd_page==2){LCD_DisplayStringLine(Line4,(uint8_t*)"       BAYBAY!      ");}
}

code.h

#ifndef _code_h
#define _code_h
#include "stm32g4xx.h"                  // Device headervoid led_show(uint8_t led,uint8_t mode);
void key_scan(void);
void Lcd_proc(void);
void Key_Proc(void);
#endif

main.c

/* USER CODE BEGIN Header */
/********************************************************************************* @file           : main.c* @brief          : Main program body******************************************************************************* @attention** Copyright (c) 2024 STMicroelectronics.* All rights reserved.** This software is licensed under terms that can be found in the LICENSE file* in the root directory of this software component.* If no LICENSE file comes with this software, it is provided AS-IS.********************************************************************************/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "gpio.h"/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "headfile.h"
/* USER CODE END Includes *//* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD *//* USER CODE END PTD *//* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD *//* USER CODE END PD *//* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM *//* USER CODE END PM *//* Private variables ---------------------------------------------------------*//* USER CODE BEGIN PV */uint8_t key_rval;
/* USER CODE END PV *//* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
/* USER CODE BEGIN PFP *//* USER CODE END PFP *//* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 *//* USER CODE END 0 *//*** @brief  The application entry point.* @retval int*/
int main(void)
{/* USER CODE BEGIN 1 *//* USER CODE END 1 *//* MCU Configuration--------------------------------------------------------*//* Reset of all peripherals, Initializes the Flash interface and the Systick. */HAL_Init();/* USER CODE BEGIN Init *//* USER CODE END Init *//* Configure the system clock */SystemClock_Config();/* USER CODE BEGIN SysInit *//* USER CODE END SysInit *//* Initialize all configured peripherals */MX_GPIO_Init();/* USER CODE BEGIN 2 */LCD_Init();LCD_Clear(White);LCD_SetBackColor(White);LCD_SetTextColor(Black);/* USER CODE END 2 *//* Infinite loop *//* USER CODE BEGIN WHILE */while (1){ Key_Proc();Lcd_proc();	/* USER CODE END WHILE *//* USER CODE BEGIN 3 */}/* USER CODE END 3 */
}/*** @brief System Clock Configuration* @retval None*/
void SystemClock_Config(void)
{RCC_OscInitTypeDef RCC_OscInitStruct = {0};RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};/** Configure the main internal regulator output voltage*/HAL_PWREx_ControlVoltageScaling(PWR_REGULATOR_VOLTAGE_SCALE1);/** Initializes the RCC Oscillators according to the specified parameters* in the RCC_OscInitTypeDef structure.*/RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;RCC_OscInitStruct.HSEState = RCC_HSE_ON;RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;RCC_OscInitStruct.PLL.PLLM = RCC_PLLM_DIV3;RCC_OscInitStruct.PLL.PLLN = 20;RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;RCC_OscInitStruct.PLL.PLLQ = RCC_PLLQ_DIV2;RCC_OscInitStruct.PLL.PLLR = RCC_PLLR_DIV2;if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK){Error_Handler();}/** Initializes the CPU, AHB and APB buses clocks*/RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK){Error_Handler();}
}/* USER CODE BEGIN 4 *//* USER CODE END 4 *//*** @brief  This function is executed in case of error occurrence.* @retval None*/
void Error_Handler(void)
{/* USER CODE BEGIN Error_Handler_Debug *//* User can add his own implementation to report the HAL error return state */__disable_irq();while (1){}/* USER CODE END Error_Handler_Debug */
}#ifdef  USE_FULL_ASSERT
/*** @brief  Reports the name of the source file and the source line number*         where the assert_param error has occurred.* @param  file: pointer to the source file name* @param  line: assert_param error line source number* @retval None*/
void assert_failed(uint8_t *file, uint32_t line)
{/* USER CODE BEGIN 6 *//* User can add his own implementation to report the file name and line number,ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) *//* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

3.效果圖片展示

二、頁面選項高亮內(nèi)容詳解

1.邏輯解釋

line_flag定義變量存儲

當頁面為 1 時，根據(jù)?line_flag?的不同設置文本顏色，并顯示與?count1、count2、count3?相關的字符串。

2.讀入數(shù)據(jù)

FIRST.第一種高亮類型

code.c（內(nèi)含代碼詳解）

#include "headfile.h"void led_show(uint8_t led,uint8_t mode)
{
HAL_GPIO_WritePin(GPIOD,GPIO_PIN_2,GPIO_PIN_SET);if(mode)
HAL_GPIO_WritePin(GPIOC,GPIO_PIN_8<<(led-1),GPIO_PIN_RESET);else
HAL_GPIO_WritePin(GPIOC,GPIO_PIN_8<<(led -1),GPIO_PIN_RESET);HAL_GPIO_WritePin(GPIOD,GPIO_PIN_2,GPIO_PIN_RESET);}
uint8_t Key_Scan(void)
{uint8_t Key_val=0;if(HAL_GPIO_ReadPin(GPIOB,GPIO_PIN_0)==GPIO_PIN_RESET){Key_val=1;}if(HAL_GPIO_ReadPin(GPIOB,GPIO_PIN_1)==GPIO_PIN_RESET){Key_val=2;}if(HAL_GPIO_ReadPin(GPIOB,GPIO_PIN_2)==GPIO_PIN_RESET){Key_val=3;}if(HAL_GPIO_ReadPin(GPIOA,GPIO_PIN_0)==GPIO_PIN_RESET){Key_val=4;}return Key_val;
}
extern uint8_t key_rval;
uint8_t Key_up,Key_down,key_old;
uint8_t count1,count2,count3;
uint8_t  lcd_page,line_flag;//定義一個變量存儲
void Key_Proc(void)	
{key_rval=Key_Scan();Key_down=key_rval&(key_rval^key_old);Key_up=~key_rval&(key_rval^key_old);key_old=key_rval;if(Key_down==1)//按鍵一切換頁面{ LCD_Clear(White);//清屏操作，不然會有殘影LCD_SetBackColor(White);LCD_SetTextColor(Black);//需要加此函數(shù)lcd_page++;//頁面加一if(lcd_page==3) lcd_page=0;//以為沒有l(wèi)cd_page==3，所以回到0}if(Key_down==2&&lcd_page==1)//只在第二個頁面起作用{line_flag++; if(line_flag==3)line_flag =0;//還可以寫成if(++line_flag==3)line_flag =0;	}if(Key_down==3&&lcd_page==1)//只在第二個頁面起作用{if(line_flag==0)count1++; if(line_flag==1)count2++;if(line_flag==2)count3++;}if(Key_down==4&&lcd_page==1)//只在第二個頁面起作用{if(line_flag==0)count1--; if(line_flag==1)count2--;if(line_flag==2)count3--;}
}
char buf[21];
void Lcd_proc(void)
{if(lcd_page==0){LCD_DisplayStringLine(Line1,(uint8_t*)"       jinke!       ");//這行代碼是將字符串 " jinke! " 強制轉(zhuǎn)換為指向 uint8_t 類型數(shù)據(jù)的指針。}if(lcd_page==1)	{   if(line_flag==0) LCD_SetTextColor(Blue);//可替換成LCD_SetBackColor(Blue);else LCD_SetTextColor(Black);sprintf(buf,"    count1:%03d     ",count1);//"count:%d" 是格式字符串，其中 %d 表示要插入一個整數(shù)變量 count 。//執(zhí)行完這行代碼后，buf 中就會存儲一個包含 "count:" 和 count 的具體數(shù)值的字符串。LCD_DisplayStringLine(Line3,(uint8_t*)buf);//“LCD_DisplayStringLine(Line4, (uint8_t*)buf)” 表示在特定的行（Line4）上顯示字符串，//其中字符串的內(nèi)容來自于指向 uint8_t 類型的指針 buf 所指向的緩沖區(qū)。if(line_flag==1) LCD_SetTextColor(Blue);else LCD_SetTextColor(Black);sprintf(buf,"    count2:%03d     ",count2);LCD_DisplayStringLine(Line4,(uint8_t*)buf);if(line_flag==2) LCD_SetTextColor(Blue);else LCD_SetTextColor(Black);sprintf(buf,"    count3:%03d     ",count3);LCD_DisplayStringLine(Line5,(uint8_t*)buf);		  }if(lcd_page==2){LCD_DisplayStringLine(Line4,(uint8_t*)"       BAYBAY!      ");}
}

code.h

#ifndef _code_h
#define _code_h
#include "stm32g4xx.h"                  // Device headervoid led_show(uint8_t led,uint8_t mode);
void key_scan(void);
void Lcd_proc(void);
void Key_Proc(void);
#endif

main.c

/* USER CODE BEGIN Header */
/********************************************************************************* @file           : main.c* @brief          : Main program body******************************************************************************* @attention** Copyright (c) 2024 STMicroelectronics.* All rights reserved.** This software is licensed under terms that can be found in the LICENSE file* in the root directory of this software component.* If no LICENSE file comes with this software, it is provided AS-IS.********************************************************************************/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "gpio.h"/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "headfile.h"
/* USER CODE END Includes *//* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD *//* USER CODE END PTD *//* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD *//* USER CODE END PD *//* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM *//* USER CODE END PM *//* Private variables ---------------------------------------------------------*//* USER CODE BEGIN PV */uint8_t key_rval;
/* USER CODE END PV *//* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
/* USER CODE BEGIN PFP *//* USER CODE END PFP *//* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 *//* USER CODE END 0 *//*** @brief  The application entry point.* @retval int*/
int main(void)
{/* USER CODE BEGIN 1 *//* USER CODE END 1 *//* MCU Configuration--------------------------------------------------------*//* Reset of all peripherals, Initializes the Flash interface and the Systick. */HAL_Init();/* USER CODE BEGIN Init *//* USER CODE END Init *//* Configure the system clock */SystemClock_Config();/* USER CODE BEGIN SysInit *//* USER CODE END SysInit *//* Initialize all configured peripherals */MX_GPIO_Init();/* USER CODE BEGIN 2 */LCD_Init();LCD_Clear(White);LCD_SetBackColor(White);LCD_SetTextColor(Black);/* USER CODE END 2 *//* Infinite loop *//* USER CODE BEGIN WHILE */while (1){ Key_Proc();Lcd_proc();	/* USER CODE END WHILE *//* USER CODE BEGIN 3 */}/* USER CODE END 3 */
}/*** @brief System Clock Configuration* @retval None*/
void SystemClock_Config(void)
{RCC_OscInitTypeDef RCC_OscInitStruct = {0};RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};/** Configure the main internal regulator output voltage*/HAL_PWREx_ControlVoltageScaling(PWR_REGULATOR_VOLTAGE_SCALE1);/** Initializes the RCC Oscillators according to the specified parameters* in the RCC_OscInitTypeDef structure.*/RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;RCC_OscInitStruct.HSEState = RCC_HSE_ON;RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;RCC_OscInitStruct.PLL.PLLM = RCC_PLLM_DIV3;RCC_OscInitStruct.PLL.PLLN = 20;RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;RCC_OscInitStruct.PLL.PLLQ = RCC_PLLQ_DIV2;RCC_OscInitStruct.PLL.PLLR = RCC_PLLR_DIV2;if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK){Error_Handler();}/** Initializes the CPU, AHB and APB buses clocks*/RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK){Error_Handler();}
}/* USER CODE BEGIN 4 *//* USER CODE END 4 *//*** @brief  This function is executed in case of error occurrence.* @retval None*/
void Error_Handler(void)
{/* USER CODE BEGIN Error_Handler_Debug *//* User can add his own implementation to report the HAL error return state */__disable_irq();while (1){}/* USER CODE END Error_Handler_Debug */
}#ifdef  USE_FULL_ASSERT
/*** @brief  Reports the name of the source file and the source line number*         where the assert_param error has occurred.* @param  file: pointer to the source file name* @param  line: assert_param error line source number* @retval None*/
void assert_failed(uint8_t *file, uint32_t line)
{/* USER CODE BEGIN 6 *//* User can add his own implementation to report the file name and line number,ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) *//* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */