c语言链表打出实验设备管理系统

以下是C语言链表实现设备管理系统的示例代码：

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

// 设备结构体
typedef struct Device {
    char name[20];  // 设备名称
    int id;         // 设备编号
    struct Device *next;  // 指向下一个设备的指针
} Device;

// 创建设备链表
Device *createDeviceList() {
    Device *head = (Device *)malloc(sizeof(Device));  // 创建头结点
    head->next = NULL;
    return head;
}

// 添加设备
void addDevice(Device *head, char *name, int id) {
    Device *newDevice = (Device *)malloc(sizeof(Device));  // 创建新设备结点
    strcpy(newDevice->name, name);
    newDevice->id = id;
    newDevice->next = NULL;

    Device *p = head;
    while (p->next != NULL) {
        p = p->next;
    }
    p->next = newDevice;
}

// 删除设备
void deleteDevice(Device *head, int id) {
    Device *p = head->next;
    Device *pre = head;
    while (p != NULL) {
        if (p->id == id) {
            pre->next = p->next;
            free(p);
            return;
        }
        pre = p;
        p = p->next;
    }
    printf("设备编号为%d的设备不存在\n", id);
}

// 修改设备
void modifyDevice(Device *head, int id, char *newName) {
    Device *p = head->next;
    while (p != NULL) {
        if (p->id == id) {
            strcpy(p->name, newName);
            return;
        }
        p = p->next;
    }
    printf("设备编号为%d的设备不存在\n", id);
}

// 查找设备
void searchDevice(Device *head, int id) {
    Device *p = head->next;
    while (p != NULL) {
        if (p->id == id) {
            printf("设备编号：%d，设备名称：%s\n", p->id, p->name);
            return;
        }
        p = p->next;
    }
    printf("设备编号为%d的设备不存在\n", id);
}

// 输出设备列表
void printDeviceList(Device *head) {
    Device *p = head->next;
    while (p != NULL) {
        printf("设备编号：%d，设备名称：%s\n", p->id, p->name);
        p = p->next;
    }
}

// 清空设备列表
void clearDeviceList(Device *head) {
    Device *p = head->next;
    while (p != NULL) {
        Device *temp = p;
        p = p->next;
        free(temp);
    }
    head->next = NULL;
}

int main() {
    Device *head = createDeviceList();  // 创建设备链表

    // 添加设备
    addDevice(head, "设备1", 1);
    addDevice(head, "设备2", 2);
    addDevice(head, "设备3", 3);

    // 输出设备列表
    printf("设备列表：\n");
    printDeviceList(head);

    // 修改设备
    modifyDevice(head, 2, "修改后的设备2");
    printf("修改后的设备列表：\n");
    printDeviceList(head);

    // 删除设备
    deleteDevice(head, 3);
    printf("删除设备后的设备列表：\n");
    printDeviceList(head);

    // 查找设备
    searchDevice(head, 2);

    // 清空设备列表
    clearDeviceList(head);
    printf("清空设备列表后的设备列表：\n");    printDeviceList(head);

    return 0;
}