设备有上下左右确认取消这六个按键，来进行设备参数修改，要修改的参数有IP、端口号、高度角等，手里暂时没有硬件，使用软件模拟的方式，来进行功能开发，打印代替显示屏。电脑键盘123456按键分别表示上下左右确认取消。纯手敲，测试正常，如有问题欢迎指正。代码如下。

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>#define MAX_DIGITS 16 // IP地址的最大数字位数
#define MAX_PAGE 3
#define MAX_IP_LEN 64
typedef struct
{int page;              // 当前页面（1: 高度角, 2: 端口号, 3: IP地址）int editing;           // 是否在编辑模式int position;          // 当前编辑的位置int value[MAX_DIGITS]; // 当前值，拆分为数字存储int value_length;      // 当前值的长度char buffer[16];       // 用于显示和存储编辑的字符串
} MenuState;typedef struct
{int angle; // 当前页面（1: 高度角, 2: 端口号, 3: IP地址）char ip[MAX_IP_LEN];uint16_t port;} device_Param;
// 菜单状态
typedef enum
{MENU_HEIGHT_ANGLE = 1,MENU_PORT,MENU_IP_ADDRESS,
} MenuStateENUM;
device_Param deviceParam;
void editMode(MenuState *state);
void mergeData(MenuState *state);
void print_menu(MenuState *state)
{int i;// system("cls");if (state->editing){switch (state->page){case MENU_HEIGHT_ANGLE:printf("Editing: Angle: ");break;case MENU_PORT:printf("Editing:PORT: ");break;case MENU_IP_ADDRESS:printf("Editing:IP: ");break;}for (i = 0; i < state->value_length; i++){printf("%d", state->value[i]);if (i == state->position){printf("_");}if ((i % 3 == 2) && (state->page == MENU_IP_ADDRESS) && (i != state->value_length - 1)){printf(".");}}printf("\n");}else{switch (state->page){case MENU_HEIGHT_ANGLE:printf("Menu 1:  Angle %d\n", deviceParam.angle);break;case MENU_PORT:printf("Menu 2:  Port   %d \n", deviceParam.port);break;case MENU_IP_ADDRESS:printf("Menu 3:  IP  %s \n", deviceParam.ip);break;}}
}
uint8_t mergeIPAddr(const char *ip_address, int *buf)
{int part[4] = {0}, i;for (i = 0; i < 4; i++){part[i] = buf[i * 3] * 100 + buf[i * 3 + 1] * 10 + buf[i * 3 + 2];}// 使用sscanf函数解析IP地址sprintf(ip_address, "%d.%d.%d.%d", part[0], part[1], part[2], part[3]);printf("%s", ip_address);return 0;
}
uint8_t splitIPAddr(const char *ip_address, int *buf)
{int part[4] = {0}, i;// 使用sscanf函数解析IP地址if (sscanf(ip_address, "%d.%d.%d.%d", &part[0], &part[1], &part[2], &part[3]) == 4){for (i = 0; i < 4; i++){buf[i * 3] = part[i] / 100;buf[i * 3 + 1] = part[i] % 100 / 10;buf[i * 3 + 2] = part[i] % 10;}}else{printf("The IP address is not in the correct format\n");return 1;}return 0;
}
void splitData(MenuState *state)
{uint16_t portNum = deviceParam.port;uint8_t data[16] = {0}, i;state->position = 0;state->value_length = 0;memset(state->value, 0, sizeof(state->value));switch (state->page){case MENU_HEIGHT_ANGLE:state->value_length = 2;state->value[1] = deviceParam.angle % 10;state->value[0] = deviceParam.angle / 10;printf("高度角拆分: ");break;case MENU_PORT:while (portNum){data[state->value_length++] = portNum % 10;portNum /= 10;}for (i = 0; i < state->value_length; i++){state->value[i] = data[state->value_length - i - 1];}printf("port拆分: ");break;case MENU_IP_ADDRESS:if (splitIPAddr(deviceParam.ip, state->value) == 0){state->value_length = 12;}printf("IP拆分: ");break;}for (int i = 0; i < state->value_length; i++){printf("%d", state->value[i]);}printf("\n");
}void mergeData(MenuState *state)
{uint8_t i;switch (state->page){case MENU_HEIGHT_ANGLE:deviceParam.angle = state->value[0] * 10 + state->value[1];printf("merge angle:%d\n", deviceParam.angle);break;case MENU_PORT:deviceParam.port = 0;for (i = 0; i < state->value_length; i++){deviceParam.port = deviceParam.port * 10 + state->value[i];}printf("merge port:%d\n", deviceParam.port);break;case MENU_IP_ADDRESS:memset(deviceParam.ip, 0, sizeof(deviceParam.ip));mergeIPAddr(deviceParam.ip, state->value);printf("merge ip: %s\n", deviceParam.ip);break;}
}int main()
{MenuState state;deviceParam.angle = 45;memcpy(deviceParam.ip, "192.168.1.11", sizeof("192.168.1.11"));deviceParam.port = 1234;state.page = 1;while (1){print_menu(&state);int key = getchar();getchar(); // 读取换行符switch (key - '0'){case 1:case 3:if (state.page == 1){state.page = MAX_PAGE;}else{state.page--;}break;case 2:case 4:if (state.page == MAX_PAGE){state.page = 1;}else{state.page++;}break;case 5:state.editing = 1;splitData(&state);editMode(&state);printf("return menu\n");break;default:printf("invalid input\n");}}return 0;
}
void editMode(MenuState *state)
{while (state->editing){print_menu(state);int key = getchar();getchar(); // 读取换行符printf("input%d\n", key- '0');switch (key - '0'){case 1:if (state->value[state->position] == 9){state->value[state->position] = 0;}else{state->value[state->position]++;}break;case 2:if (state->value[state->position] == 0){state->value[state->position] = 9;}else{state->value[state->position]--;}break;case 3:if (state->position == 0){state->position = state->value_length - 1;}else{state->position--;}break;case 4:if (state->position == state->value_length - 1){state->position = 0;}else{state->position++;}break;case 5: // 确认键：进入编辑模式或保存修改if (state->editing == 1){mergeData(state);printf("save state\n");}break;case 6: // 取消键：退出编辑模式或返回上一级菜单state->editing = 0;break;default:printf("invalid input\n");}}
}