C语言图书馆里系统

川长思鸟来 2023-02-18 01:47 8阅读 0赞

## C语言图书馆里系统 ##

去掉了相关指针的应用

头文件

#ifndef FUNCTION_H_
    #define FUNCTION_H_
    
    #include <stdio.h>
    #include <stdlib.h>
    #include <string.h>
    #include <stdbool.h>
    typedef struct
    { 
        //书号
        int ID;
        //书名
        char name[20];
        //作者
        char author[20];
        //分类
        int type;
        //出版单位
        char publishingUnit[20];
        //出版时间
        char publishingTime[20];
        //价格
        int price;
    } Book;
    //书籍总表
    Book book[20];
    //录入图书信息
    bool InputBook();
    //查找空位
    int SeekVoidTable();
    //浏览图书信息
    void BrowseBook();
    //查询图书信息
    //int参数为查询类型，0为按书名查询，1为按作者查询
    int SeekBook(int seektype,char* index);
    //删除书籍
    //int参数为查询类型，0为按书名删除，1为按作者删除
    void DeleteBook(int seektype, char *index);
    //修改书籍
    //int参数为查询类型，0为按书名修改，1为按作者修改
    void ModifyBook(int seektype, char *index);
    //输出主菜单
    char PrintMainMenu();
    //根据主菜单选择选择相应操作
    void MainChooseOperation(char tempchoose);
    //查询书籍菜单
    char PrintSeekBookMenu();
    //根据查询菜单选择选择相应操作
    void SeekBookChooseOperation(char tempchoose);
    
    #endif // !FUNCTION_H_

源文件

#include "function.h"
    
    //查找空位
    int SeekVoidTable()
    { 
        for (int i = 0; i < sizeof(book) / sizeof(Book); i++)
        { 
            if (book[i].ID == 0)
            { 
                return i;
            }
        }
        return -1;
    }
    //录入图书信息
    bool InputBook()
    { 
        int tempbook = SeekVoidTable();
        if (tempbook != -1)
        { 
            printf("开始录入书籍信息：\n\n");
            printf("请输入书号：");
            scanf("%d", &book[tempbook].ID);
            printf("请输入书名：");
            scanf("%s", book[tempbook].name);
            printf("请输入作者：");
            scanf("%s", book[tempbook].author);
            printf("请输入类型：");
            scanf("%d", &book[tempbook].type);
            printf("请输入出版单位：");
            scanf("%s", &book[tempbook].publishingUnit);
            printf("请输入出版时间：");
            scanf("%s", &book[tempbook].publishingTime);
            printf("请输入价格：");
            scanf("%d", &book[tempbook].price);
            printf("*********输入完成*********\n");
            printf("*********按任意键返回主菜单*********\n");
            system("pause");
            system("cls");
            return true;
        }
        else
        { 
            printf("已经满了\n");
            printf("*********按任意键继续*********\n");
            system("pause");
            system("cls");
            return false;
        }
    }
    //查询图书信息
    //int参数为查询类型，0为按书名查询，1为按作者查询
    int SeekBook(int seektype, char *index)
    { 
        if (seektype == 0)
        { 
            for (int i = 0; i < sizeof(book) / sizeof(Book); i++)
            { 
                if (strcmp(index, book[i].name) == 0)
                { 
                    return i;
                }
            }
        }
        else if (seektype == 1)
        { 
            for (int i = 0; i < sizeof(book) / sizeof(Book); i++)
            { 
                if (strcmp(index, book[i].author) == 0)
                { 
                    return i;
                }
            }
        }
        return -1;
    }
    //浏览图书信息
    void BrowseBook()
    { 
        for (int i = 0; i < sizeof(book) / sizeof(Book); i++)
        { 
            if (book[i].ID != 0)
            { 
                printf("书号：%d\t", book[i].ID);
                printf("书名：%s\t", book[i].name);
                printf("作者：%s\t", book[i].author);
                printf("类型：%d\t", book[i].type);
                printf("出版单位：%s\t", book[i].publishingUnit);
                printf("出版时间：%s\t", book[i].publishingTime);
                printf("价格：%d\n", book[i].price);
            }
        }
        printf("*********按任意键继续*********\n");
        system("pause");
        system("cls");
    }
    //删除书籍
    //int参数为查询类型，0为按书名查询，1为按作者查询
    void DeleteBook(int seektype, char *index)
    { 
        int tempbook = SeekBook(seektype, index);
        if (tempbook != -1)
        { 
            Book temp = { 0};
            book[tempbook] = temp;
            printf("删除完成\n");
            printf("*********按任意键继续*********\n");
            system("pause");
            system("cls");
        }
        else
        { 
            printf("书籍不存在\n");
            printf("*********按任意键继续*********\n");
            system("pause");
            system("cls");
        }
    }
    //修改书籍
    //int参数为修改类型，0为按书名查询，1为按作者查询
    void ModifyBook(int seektype, char *index)
    { 
        int tempbook = SeekBook(seektype, index);
        if (tempbook != -1)
        { 
            printf("请输入书号：");
            scanf("%d", &book[tempbook].ID);
            printf("请输入书名：");
            scanf("%s", book[tempbook].name);
            printf("请输入作者：");
            scanf("%s", book[tempbook].author);
            printf("请输入类型：");
            scanf("%d", &book[tempbook].type);
            printf("请输入出版单位：");
            scanf("%s", &book[tempbook].publishingUnit);
            printf("请输入出版时间：");
            scanf("%s", &book[tempbook].publishingTime);
            printf("请输入价格：");
            scanf("%d", &book[tempbook].price);
            printf("修改完成\n");
            printf("*********按任意键继续*********\n");
            system("pause");
            system("cls");
        }
        else
        { 
            printf("书籍不存在\n");
            printf("*********按任意键继续*********\n");
            system("pause");
            system("cls");
        }
    }
    
    //输出主菜单，捕获输入的选项
    char PrintMainMenu()
    { 
        system("cls");
        char menustr[10][100] =
            { "讲解人: XXXXX\n",
             " 图书信息管理系统 ",
             "\n------------------------------\n",
             "\n|| >>1 录入书籍<< ||\n",
             "\n|| >>2 浏览目录<< ||\n",
             "\n|| >>3 查询书籍<< ||\n",
             "\n|| >>4 删除书籍<< ||\n",
             "\n|| >>5 修改书籍<< ||\n",
             "\n|| >>6 退出程序<< ||\n",
             "\n------------------------------\n"};
        printf("\n");
        for (int i = 0; i < sizeof(menustr) / sizeof(menustr[0]); i++)
        { 
            printf("%s\n", menustr[i]);
        }
        //使用字符串，方便后续判断是否是违法输出
        char choose[10];
        //选择是否合规
        bool judgechoose = false;
        //选项目录表
        char choosetable[6][100] = { "1", "2", "3", "4", "5", "6"};
        do
        { 
            printf("\n请输入功能选项：");
            scanf("%s", choose);
            for (int i = 0; i < 6; i++)
            { 
                if (strcmp(choose, choosetable[i]) == 0)
                { 
                    judgechoose = true;
                    break;
                }
            }
        } while (!judgechoose);
        return choose[0];
    }
    //查询书籍菜单
    char PrintSeekBookMenu()
    { 
        system("cls");
        printf("1 书名查询\n");
        printf("2 作者查询\n");
        char choose[10];
        //选择是否合规
        bool judgechoose = false;
        //选项目录表
        char choosetable[2][100] = { "1", "2"};
        do
        { 
            printf("\n请输入功能选项：");
            scanf("%s", choose);
            for (int i = 0; i < 2; i++)
            { 
                if (strcmp(choose, choosetable[i]) == 0)
                { 
                    judgechoose = true;
                    break;
                }
            }
        } while (!judgechoose);
        return choose[0];
    }
    
    //根据主菜单选择选择相应操作
    void MainChooseOperation(char tempchoose)
    { 
        system("cls");
        char tempname[20];
        switch (tempchoose)
        { 
        case '1':
            //录入书籍
            InputBook();
            break;
        case '2':
            //浏览书籍
            BrowseBook();
            break;
        case '3':
            //查询书籍
            SeekBookChooseOperation(PrintSeekBookMenu());
            break;
        case '4':
            //删除书籍
            printf("请输入书名进行删除：");
            scanf("%s", tempname);
            DeleteBook(0, tempname);
            break;
        case '5':
            //修改书籍
            printf("请输入书名进行修改：");
            scanf("%s", tempname);
            ModifyBook(0, tempname);
            break;
        case '6':
            exit(0);
            break;
        }
    }
    //根据查询菜单选择选择相应操作
    void SeekBookChooseOperation(char tempchoose)
    { 
        system("cls");
        char tempbookname[20];
        int tempbook;
        switch (tempchoose)
        { 
        case '1':
            //书名查询
            printf("请输入书名：");
            scanf("%s", tempbookname);
            tempbook = SeekBook(0, tempbookname);
            if (tempbook != -1)
                printf("书号：%d 书名：%s\t 作者：%s\t 分类：%d\t 出版单位：%s\t 出版时间：%s\t 价格：%d\n",
                       book[tempbook].ID, book[tempbook].name, book[tempbook].author, book[tempbook].type,
                       book[tempbook].publishingUnit, book[tempbook].publishingTime, book[tempbook].price);
            else
            { 
                printf("书籍不存在\n");
            }
            break;
        case '2':
            printf("请输入作者名：");
            scanf("%s", tempbookname);
            tempbook = SeekBook(0, tempbookname);
            if (tempbook != -1)
            { 
                printf("书号：%d\t 书名：%s\t 作者：%s\t 分类：%d\t 出版单位：%s\t 出版时间：%s\t 价格：%d\n",
                       book[tempbook].ID, book[tempbook].name, book[tempbook].author, book[tempbook].type,
                       book[tempbook].publishingUnit, book[tempbook].publishingTime, book[tempbook].price);
            }
            else
            { 
                printf("书籍不存在\n");
            }
            break;
        }
        printf("*********按任意键继续*********\n");
        system("pause");
        system("cls");
    }
    int main(int argc, char const *argv[])
    { 
        //清除之前的指令
        system("cls");
        while (1)
        { 
            MainChooseOperation(PrintMainMenu());
        }
        return 0;
    }

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