点歌台管理系统c语言

Question

点歌台管理系统
当今社会生活节奏快，压力大，需要唱唱歌来放松，现有一ktv点歌设备公司拟使用C话言开
发一款ktv点歌管理系统，功能包括但不限于如下：
1.该系统可以有管理员，管理员登录之后可以新增，删除，查找，修改歌曲的信息。2.该系统可以由管理员启动点歌模式，可以设置本次消费时长，可以延长本次消费时间3.客户可根据歌曲的风格，拼音首字母，歌手名字等相关信息进行点歌
4.已点歌曲列表可以进行歌曲置顶，删除等操作5.可以提供热歌榜，新歌榜等相关内容方便客户进行点歌6.所有的相关数据都应使用文件进行持文化保存

Answer 1

https://blog.csdn.net/qq_35960743/article/details/122408272

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

// 歌曲结构体
typedef struct Song {
    char name[100];
    char artist[100];
    char style[100];
    struct Song* next;
} Song;

// 歌曲列表结构体
typedef struct SongList {
    Song* head;
    int count;
} SongList;

// 初始化歌曲列表
SongList* initSongList() {
    SongList* list = (SongList*)malloc(sizeof(SongList));
    list->head = NULL;
    list->count = 0;
    return list;
}

// 添加歌曲
void addSong(SongList* list, const char* name, const char* artist, const char* style) {
    Song* song = (Song*)malloc(sizeof(Song));
    strcpy(song->name, name);
    strcpy(song->artist, artist);
    strcpy(song->style, style);
    song->next = NULL;

    if (list->head == NULL) {
        list->head = song;
    }
    else {
        Song* current = list->head;
        while (current->next != NULL) {
            current = current->next;
        }
        current->next = song;
    }

    list->count++;
}

// 删除歌曲
void deleteSong(SongList* list, const char* name) {
    if (list->head == NULL) {
        return;
    }

    if (strcmp(list->head->name, name) == 0) {
        Song* temp = list->head;
        list->head = list->head->next;
        free(temp);
        list->count--;
        return;
    }

    Song* current = list->head;
    while (current->next != NULL) {
        if (strcmp(current->next->name, name) == 0) {
            Song* temp = current->next;
            current->next = current->next->next;
            free(temp);
            list->count--;
            return;
        }
        current = current->next;
    }
}

// 查找歌曲
Song* findSong(SongList* list, const char* name) {
    Song* current = list->head;
    while (current != NULL) {
        if (strcmp(current->name, name) == 0) {
            return current;
        }
        current = current->next;
    }
    return NULL;
}

// 修改歌曲信息
void modifySong(Song* song, const char* name, const char* artist, const char* style) {
    strcpy(song->name, name);
    strcpy(song->artist, artist);
    strcpy(song->style, style);
}

// 显示歌曲列表
void displaySongList(SongList* list) {
    Song* current = list->head;
    printf("歌曲列表：\n");
    while (current != NULL) {
        printf("歌曲名称：%s\n", current->name);
        printf("歌手：%s\n", current->artist);
        printf("风格：%s\n", current->style);
        printf("-------------------\n");
        current = current->next;
    }
}

// 保存歌曲列表到文件
void saveSongListToFile(SongList* list, const char* filename) {
    FILE* file = fopen(filename, "w");
    if (file == NULL) {
        printf("无法打开文件\n");
        return;
    }

    Song* current = list->head;
    while (current != NULL) {
        fprintf(file, "%s,%s,%s\n", current->name, current->artist, current->style);
        current = current->next;
    }

    fclose(file);
    printf("歌曲列表保存成功\n");
}

// 从文件加载歌曲列表
SongList* loadSongListFromFile(const char* filename) {
    FILE* file = fopen(filename, "r");
    if (file == NULL) {
        printf("无法打开文件\n");
        return NULL;
    }

    SongList* list = initSongList();
    char line[300];
    while (fgets(line, sizeof(line), file)) {
        char* name = strtok(line, ",");
        char* artist = strtok(NULL, ",");
        char* style = strtok(NULL, "\n");
        addSong(list, name, artist, style);
    }

    fclose(file);
    printf("歌曲列表加载成功\n");
    return list;
}

int main() {
    SongList* songList = initSongList();
    char filename[100] = "songlist.txt";
    songList = loadSongListFromFile(filename);

    int choice;
    while (1) {
        printf("请选择操作：\n");
        printf("1. 添加歌曲\n");
        printf("2. 删除歌曲\n");
        printf("3. 查找歌曲\n");
        printf("4. 修改歌曲信息\n");
        printf("5. 显示歌曲列表\n");
        printf("6. 保存歌曲列表到文件\n");
        printf("0. 退出\n");
        scanf("%d", &choice);

        if (choice == 1) {
            char name[100], artist[100], style[100];
            printf("请输入歌曲名称：");
            scanf("%s", name);
            printf("请输入歌手：");
            scanf("%s", artist);
            printf("请输入风格：");
            scanf("%s", style);
            addSong(songList, name, artist, style);
            printf("歌曲添加成功\n");
        }
        else if (choice == 2) {
            char name[100];
            printf("请输入要删除的歌曲名称：");
            scanf("%s", name);
            deleteSong(songList, name);
            printf("歌曲删除成功\n");
        }
        else if (choice == 3) {
            char name[100];
            printf("请输入要查找的歌曲名称：");
            scanf("%s", name);
            Song* song = findSong(songList, name);
            if (song != NULL) {
                printf("歌曲名称：%s\n", song->name);
                printf("歌手：%s\n", song->artist);
                printf("风格：%s\n", song->style);
            }
            else {
                printf("未找到该歌曲\n");
            }
        }
        else if (choice == 4) {
            char name[100], artist[100], style[100];
            printf("请输入要修改的歌曲名称：");
            scanf("%s", name);
            Song* song = findSong(songList, name);
            if (song != NULL) {
                printf("请输入新的歌曲名称：");
                scanf("%s", name);
                printf("请输入新的歌手：");
                scanf("%s", artist);
                printf("请输入新的风格：");
                scanf("%s", style);
                modifySong(song, name, artist, style);
                printf("歌曲信息修改成功\n");
            }
            else {
                printf("未找到该歌曲\n");
            }
        }
        else if (choice == 5) {
            displaySongList(songList);
        }
        else if (choice == 6) {
            saveSongListToFile(songList, filename);
        }
        else if (choice == 0) {
            break;
        }
        else {
            printf("无效的选择\n");
        }
    }

    return 0;
}