杨某zysq 2022-11-04 23:56 采纳率: 60%
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已结题

关于c语言的一个系统

大伙们，为什么会这样子啊

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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <conio.h>
struct worker
{
    char ID[20];//工号
    char name[20];//姓名
    char sex[5];//性别
    char born[20];//生日
    char edu[20];//学历
    char position[20];//职务
    char wage[10];//工资
    char address[100];//住址
    char tel[15];//电话
}work[1000];
int n;

//文件读写模块
void read()//读入数据
{
    FILE* fp;
    int i = 0;
    if (( fopen_s(&fp,"d:\\date.txt", "r")) == NULL)
    {
        printf("请在D盘根目录下新建一个文本文件，文件名为date\n\n\n");
        system("pause");
        system("cls");
        return;
    }
    fscanf_s(fp, "%d\n", &n);
    while (i < n)
    {
        fscanf_s(fp, "%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n", work[i].ID,20, work[i].name,20, work[i].sex,5, work[i].born,20, work[i].edu,20, work[i].position,20, work[i].wage,10, work[i].address,100, work[i].tel,15);
        i++;
    }
    fclose(fp);
}
void write()//写入数据
{
    FILE* fp;
    int i = 0;
    if (( fopen_s(&fp,"d:\\date.txt", "w")) == NULL)
    {
        printf_s("无法打开文件！\n");
        return;
    }
    fprintf(fp, "%d\n", n);
    while (i < n)
    {
        fprintf(fp, "%\n%s\n%s\n%s\n%s\n%s\n%s\%s\n%s\n", work[i].ID, 20, work[i].name, 20, work[i].sex, 5, work[i].born, 20, work[i].edu, 20, work[i].position, 20, work[i].wage, 10, work[i].address, 100, work[i].tel, 15);
    }
    fclose(fp);
}

//输入模块
void input()// 从键盘输入
{
    int i;
    int flag;//标记工号是否已存在
    char c;//指令Y?N
    read();//输入数据前先将文件中原有的数据读入
    do
    {
        flag = 0;
        printf("\t\t请输入职工的工号:               \n\t\t");
        scanf_s("%s", work[n].ID,20);
        for (i = 0; i < n; i++)
        {
            if (strcmp(work[i].ID, work[n].ID) == 0)
            {
                flag = 1;
                break;
            }
        }
        if (flag)
        {
            printf("该工号已存在！\n\n");
            printf("\t\t是否继续输入?(Y/N): ");
            scanf_s("%*c%c", &c,1);
            if (c == 'N' || c == 'n') break;
            continue;
        }
        printf("\t\t请输入职工的姓名:               \n\t\t");
        scanf_s("%s", work[n].name,20);
        printf("\t\t请输入职工的性别:               \n\t\t");
        scanf_s("%s", work[n].sex,5);
        printf("\t\t请输入职工的出生年月:             \n\t\t");
        scanf_s("%s", work[n].born,20);
        printf("\t\t请输入职工的学历:               \n\t\t");
        scanf_s("%s", work[n].edu,20);
        printf("\t\t请输入职工的职务:               \n\t\t");
        scanf_s("%s", work[n].position,20);
        printf("\t\t请输入职工的工资:               \n\t\t");
        scanf_s("%s", work[n].wage,20);
        printf("\t\t请输入职工的住址:               \n\t\t");
        scanf_s("%s", work[n].address,100);
        printf("\t\t请输入职工的电话:               \n\t\t");
        scanf_s("%s", work[n].tel,15);
        printf("\t\t是否继续输入?(Y/N): ");
        scanf_s("%*c%c", &c,1);
        n++;
    } while (c != 'N' && c != 'n');
    write();
    printf("\n\n数据已保存！\n\n");
}

//显示模块
void output_inf(int id)
{
    printf("\t\t  工号: %s\n", work[id].ID,20);
    printf("\t\t  姓名: %s\n", work[id].name,20);
    printf("\t\t  性别: %s\n", work[id].sex,5);
    printf("\t\t出生年月: %s\n", work[id].born,20);
    printf("\t\t  学历: %s\n", work[id].edu,20);
    printf("\t\t  职务: %s\n", work[id].position,20);
    printf("\t\t  工资: %s\n", work[id].wage,20);
    printf("\t\t  住址: %s\n", work[id].address,100);
    printf("\t\t  电话: %s\n", work[id].tel,15);
    printf("\n\n\n");
}
void show()//显示所有职工信息
{
    int i;
    read();
    if (n == 0) printf("无记录!\n\n");
    else
        for (i = 0; i < n; i++)
        {
            output_inf(i);
        }
}

//查询模块
void que()//查询信息
{
    char num;
    int flag, i;
    char q_id[20];//查询工号
    char q_name[20];//查询姓名
    char q_edu[20]; //查询学历
    char q_position[20];//查询职位
    char c;//指令Y?N
    read();//打开程序后，要查询以前的数据，要先读入
    while (1)
    {
        system("cls");
        printf("\t\t******************查询********************\n");
        printf("\t\t*                    *\n");
        printf("\t\t*       1.按工号查询        *\n");
        printf("\t\t*                    *\n");
        printf("\t\t*       2.按姓名查询        *\n");
        printf("\t\t*                    *\n");
        printf("\t\t*       3.按学历查询        *\n");
        printf("\t\t*                    *\n");
        printf("\t\t*       4.按职务查询        *\n");
        printf("\t\t*                    *\n");
        printf("\t\t*    输入其他任意键退出本模块     *\n");
        printf("\t\t******************************************\n");
        printf("\t\t请输入指令(1-4):");
        scanf_s("%*c%c", &num,1);
        if (num < '1' || num > '4')
        {
            printf("错误指令！\n\n");
            system("pause");
            continue;
        }
        system("cls");
        flag = 0;//用来标记职工信息是否存在
        if (num == '1')//按工号查询
        {
            printf("\t\t请输入您要查询职工的工号：");
            scanf_s("%s", q_id,20);
            for (i = 0; i < n; i++)
            {
                if (strcmp(work[i].ID, q_id) == 0)
                {
                    output_inf(i);
                    flag = 1;//标记
                    break;
                }
            }
        }
        else if (num == '2')//按姓名查询
        {
            printf("\t\t请输入您要查询职工的姓名：");
            scanf_s("%s", q_name,20);
            for (i = 0; i < n; i++)
            {
                if (strcmp(work[i].name, q_name) == 0)
                {
                    output_inf(i);
                    flag = 1;//标记
                }
            }
        }
        else if (num == '3')//按学历查询
        {
            printf("\t\t请输入您要查询职工的学历：");

            scanf_s("%s", q_edu,20);
            for (i = 0; i < n; i++)
            {
                if (strcmp(work[i].edu, q_edu) == 0)
                {
                    output_inf(i);
                    flag = 1;//标记
                }
            }
        }
        else if (num == '4')//按职务查询
        {
            printf("\t\t请输入您要查询职工的职务：");
            scanf_s("%s", q_position,20);
            for (i = 0; i < n; i++)
            {
                if (strcmp(work[i].position, q_position) == 0)
                {
                    output_inf(i);
                    flag = 1;//标记
                }
            }
        }
        if (!flag)//判断是否有该职工信息
        {
            printf("\n\n无该职工信息!\n\n");
        }
        printf("\n\n是否继续查询(Y/N):");

        scanf_s("%*c%c", &c,1);
        if (c == 'N' || c == 'n') break;
    }
}

//修改信息模块
void mod()//修改职工信息
{
    char change_ID[20];//需修改的职工的工号
    int number;//职工信息在数据中的位置
    char num;//指令
    char message[100];//修改的信息
    char c;//指令Y?N
    int flag;
    int i;
    read();
    while (1)
    {
        flag = 0;
        system("cls");
        printf("请输入需修改的职工的工号：");
        scanf_s("%s", change_ID,20);
        for (i = 0; i < n; i++)
        {
            if (strcmp(work[i].ID, change_ID) == 0)
            {
                number = i;
                flag = 1;
                break;
            }
        }
        if (!flag)
        {
            printf("\n\n无此员工信息！！\n\n");
            printf("\n\n是否继续修改(Y/N):");
            scanf_s("%*c%c", &c,1);
            if (c == 'N' || c == 'n') break;
            continue;
        }
        printf("\n\n\t\t******************修改********************\n");
        printf("\t\t*                    *\n");
        printf("\t\t*       1.修改姓名         *\n");
        printf("\t\t*                    *\n");
        printf("\t\t*       2.修改学历         *\n");
        printf("\t\t*                    *\n");
        printf("\t\t*       3.修改职务         *\n");
        printf("\t\t*                    *\n");
        printf("\t\t*       4.修改工资         *\n");
        printf("\t\t*                    *\n");
        printf("\t\t*       5.修改住址         *\n");
        printf("\t\t*                    *\n");
        printf("\t\t*       6.修改电话         *\n");
        printf("\t\t*                    *\n");
        printf("\t\t*    输入其他任意键退出本模块     *\n");
        printf("\t\t******************************************\n");
        printf("\t\t请输入指令(1-6):");
        scanf_s("%*c%c", &num,1);
        if (num < '1' || num > '6')
        {
            printf("错误指令！\n\n");
            system("pause");
            continue;
        }
        system("cls");
        printf("请输入修改后的信息：");
        scanf_s("%s", message,100);
        switch (num)
        {
        case '1': strcpy_s(work[number].name,20, message); break;
        case '2': strcpy_s(work[number].edu,20, message); break;
        case '3': strcpy_s(work[number].position, 20,message); break;
        case '4': strcpy_s(work[number].wage,20, message); break;
        case '5': strcpy_s(work[number].address,100, message); break;
        case '6': strcpy_s(work[number].tel,15, message); break;
        }
        system("cls");
        printf("\n\n是否继续修改(Y/N):");
        scanf_s("%*c%c", &c,1);
        if (c == 'N' || c == 'n') break;
    }
    write();
}

//删除信息模块
void del()//删除职工信息
{
    char delete_ID[20];//删除职工工号
    int i, j;
    int flag;//标记是否有该职工信息
    char c;
    read();
    while (1)
    {
        system("cls");
        flag = 0;
        printf("请输入需删除职工信息的工号：");
        scanf_s("%s", delete_ID,20);
        for (i = 0; i < n; i++)
        {
            if (strcmp(work[i].ID, delete_ID) == 0)
            {
                n--;
                flag = 1;
                for (j = i; j < n; j++)
                {
                    work[j] = work[j + 1];
                }
                break;
            }
        }
        if (!flag) printf("\n\n无此员工信息！\n\n");
        else printf("\n\n删除成功！\n");
        printf("\n\n是否继续删除(Y/N):");
        scanf_s("%*c%c", &c,1);
        if (c == 'N' || c == 'n') break;
    }
    write();
}

//菜单模块
void menu()//菜单
{
    printf("\t\t************职工信息管理系统菜单**********\n");
    printf("\t\t*                    *\n");
    printf("\t\t*       1.录入职工信息      *\n");
    printf("\t\t*                    *\n");
    printf("\t\t*       2.显示职工信息      *\n");
    printf("\t\t*                    *\n");
    printf("\t\t*       3.查询职工信息      *\n");
    printf("\t\t*                    *\n");
    printf("\t\t*       4.修改职工信息      *\n");
    printf("\t\t*                    *\n");
    printf("\t\t*       5.删除职工信息      *\n");
    printf("\t\t*                    *\n");
    printf("\t\t*       0.退出          *\n");
    printf("\t\t*                    *\n");
    printf("\t\t******************************************\n");
    printf("\t\t请输入指令(0-5): ");
}

int main()
{
    int num;
    n = 0;
    system("color 0B");
    while (1)
    {
        menu();
        scanf_s("%d", &num,1);
        system("cls");
        switch (num)
        {
        case 1: input(); break;
        case 2: show(); break;
        case 3: que();  break;
        case 4: mod();  break;
        case 5: del();  break;
        case 0: printf("谢谢使用！\n\n"); return 0;
        default:printf("\n--->无效的指令!\n\n\n");
        }
        system("pause");
        system("cls");
    }
}
  • 写回答

3条回答 默认 最新

  • CSDN专家-link 2022-11-05 07:27
    关注

    反正就是输入输出函数使用的错误导致崩溃

     
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <conio.h>
struct worker
{
    char ID[20];//工号
    char name[20];//姓名
    char sex[5];//性别
    char born[20];//生日
    char edu[20];//学历
    char position[20];//职务
    char wage[10];//工资
    char address[100];//住址
    char tel[15];//电话
}work[1000];
int n;
 
//文件读写模块
void read()//读入数据
{
    FILE* fp = NULL;
    int i = 0;
    fopen_s(&fp,"d:\\date.txt", "r");
    if (fp == NULL)
    {
        printf("请在D盘根目录下新建一个文本文件，文件名为date\n\n\n");
        system("pause");
        system("cls");
        return;
    }
    fscanf_s(fp, "%d", &n);
    while (i < n)
    {
        fscanf_s(fp, "%s%s%s%s%s%s%s%s%s", work[i].ID,20, work[i].name,20, work[i].sex,5, work[i].born,20, work[i].edu,20, work[i].position,20, work[i].wage,10, work[i].address,100, work[i].tel,15);
        i++;
    }
    fclose(fp);
}
void write()//写入数据
{
    FILE* fp = NULL;
    int i = 0;
    fopen_s(&fp,"d:\\date.txt", "w");
    if (fp == NULL)
    {
        printf_s("无法打开文件！\n");
        return;
    }
    fprintf(fp, "%d\n", n);
    while (i < n)
    {
        fprintf(fp, "%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n", work[i].ID, work[i].name, work[i].sex, work[i].born, work[i].edu, work[i].position,work[i].wage, work[i].address, work[i].tel);
        i++;
    }
    fclose(fp);
}
 
//输入模块
void input()// 从键盘输入
{
    int i;
    int flag;//标记工号是否已存在
    char c;//指令Y?N
    read();//输入数据前先将文件中原有的数据读入
    do
    {
        flag = 0;
        printf("\t\t请输入职工的工号:               \n\t\t");
        scanf_s("%s", work[n].ID,20);
        for (i = 0; i < n; i++)
        {
            if (strcmp(work[i].ID, work[n].ID) == 0)
            {
                flag = 1;
                break;
            }
        }
        if (flag)
        {
            printf("该工号已存在！\n\n");
            printf("\t\t是否继续输入?(Y/N): ");
            scanf_s("%*c%c", &c,1);
            if (c == 'N' || c == 'n') break;
            continue;
        }
        printf("\t\t请输入职工的姓名:               \n\t\t");
        scanf_s("%s", work[n].name,20);
        printf("\t\t请输入职工的性别:               \n\t\t");
        scanf_s("%s", work[n].sex,5);
        printf("\t\t请输入职工的出生年月:             \n\t\t");
        scanf_s("%s", work[n].born,20);
        printf("\t\t请输入职工的学历:               \n\t\t");
        scanf_s("%s", work[n].edu,20);
        printf("\t\t请输入职工的职务:               \n\t\t");
        scanf_s("%s", work[n].position,20);
        printf("\t\t请输入职工的工资:               \n\t\t");
        scanf_s("%s", work[n].wage,10);
        printf("\t\t请输入职工的住址:               \n\t\t");
        scanf_s("%s", work[n].address,100);
        printf("\t\t请输入职工的电话:               \n\t\t");
        scanf_s("%s", work[n].tel,15);
        printf("\t\t是否继续输入?(Y/N): ");
        scanf_s("%*c%c", &c,1);
        n++;
    } while (c != 'N' && c != 'n');
    write();
    printf("\n\n数据已保存！\n\n");
}
 
//显示模块
void output_inf(int id)
{
    printf("\t\t  工号: %s\n", work[id].ID);
    printf("\t\t  姓名: %s\n", work[id].name);
    printf("\t\t  性别: %s\n", work[id].sex);
    printf("\t\t出生年月: %s\n", work[id].born);
    printf("\t\t  学历: %s\n", work[id].edu);
    printf("\t\t  职务: %s\n", work[id].position);
    printf("\t\t  工资: %s\n", work[id].wage);
    printf("\t\t  住址: %s\n", work[id].address);
    printf("\t\t  电话: %s\n", work[id].tel);
    printf("\n\n\n");
}
void show()//显示所有职工信息
{
    int i;
    read();
    if (n == 0) printf("无记录!\n\n");
    else
        for (i = 0; i < n; i++)
        {
            output_inf(i);
        }
}
 
//查询模块
void que()//查询信息
{
    char num;
    int flag, i;
    char q_id[20];//查询工号
    char q_name[20];//查询姓名
    char q_edu[20]; //查询学历
    char q_position[20];//查询职位
    char c;//指令Y?N
    read();//打开程序后，要查询以前的数据，要先读入
    while (1)
    {
        system("cls");
        printf("\t\t******************查询********************\n");
        printf("\t\t*                    *\n");
        printf("\t\t*       1.按工号查询        *\n");
        printf("\t\t*                    *\n");
        printf("\t\t*       2.按姓名查询        *\n");
        printf("\t\t*                    *\n");
        printf("\t\t*       3.按学历查询        *\n");
        printf("\t\t*                    *\n");
        printf("\t\t*       4.按职务查询        *\n");
        printf("\t\t*                    *\n");
        printf("\t\t*    输入其他任意键退出本模块     *\n");
        printf("\t\t******************************************\n");
        printf("\t\t请输入指令(1-4):");
        scanf_s("%*c%c", &num,1);
        if (num < '1' || num > '4')
        {
            printf("错误指令！\n\n");
            system("pause");
            continue;
        }
        system("cls");
        flag = 0;//用来标记职工信息是否存在
        if (num == '1')//按工号查询
        {
            printf("\t\t请输入您要查询职工的工号：");
            scanf_s("%s", q_id,20);
            for (i = 0; i < n; i++)
            {
                if (strcmp(work[i].ID, q_id) == 0)
                {
                    output_inf(i);
                    flag = 1;//标记
                    break;
                }
            }
        }
        else if (num == '2')//按姓名查询
        {
            printf("\t\t请输入您要查询职工的姓名：");
            scanf_s("%s", q_name,20);
            for (i = 0; i < n; i++)
            {
                if (strcmp(work[i].name, q_name) == 0)
                {
                    output_inf(i);
                    flag = 1;//标记
                }
            }
        }
        else if (num == '3')//按学历查询
        {
            printf("\t\t请输入您要查询职工的学历：");
 
            scanf_s("%s", q_edu,20);
            for (i = 0; i < n; i++)
            {
                if (strcmp(work[i].edu, q_edu) == 0)
                {
                    output_inf(i);
                    flag = 1;//标记
                }
            }
        }
        else if (num == '4')//按职务查询
        {
            printf("\t\t请输入您要查询职工的职务：");
            scanf_s("%s", q_position,20);
            for (i = 0; i < n; i++)
            {
                if (strcmp(work[i].position, q_position) == 0)
                {
                    output_inf(i);
                    flag = 1;//标记
                }
            }
        }
        if (!flag)//判断是否有该职工信息
        {
            printf("\n\n无该职工信息!\n\n");
        }
        printf("\n\n是否继续查询(Y/N):");
 
        scanf_s("%*c%c", &c,1);
        if (c == 'N' || c == 'n') break;
    }
}
 
//修改信息模块
void mod()//修改职工信息
{
    char change_ID[20];//需修改的职工的工号
    int number;//职工信息在数据中的位置
    char num;//指令
    char message[100];//修改的信息
    char c;//指令Y?N
    int flag;
    int i;
    read();
    while (1)
    {
        flag = 0;
        system("cls");
        printf("请输入需修改的职工的工号：");
        scanf_s("%s", change_ID,20);
        for (i = 0; i < n; i++)
        {
            if (strcmp(work[i].ID, change_ID) == 0)
            {
                number = i;
                flag = 1;
                break;
            }
        }
        if (!flag)
        {
            printf("\n\n无此员工信息！！\n\n");
            printf("\n\n是否继续修改(Y/N):");
            scanf_s("%*c%c", &c,1);
            if (c == 'N' || c == 'n') break;
            continue;
        }
        printf("\n\n\t\t******************修改********************\n");
        printf("\t\t*                    *\n");
        printf("\t\t*       1.修改姓名         *\n");
        printf("\t\t*                    *\n");
        printf("\t\t*       2.修改学历         *\n");
        printf("\t\t*                    *\n");
        printf("\t\t*       3.修改职务         *\n");
        printf("\t\t*                    *\n");
        printf("\t\t*       4.修改工资         *\n");
        printf("\t\t*                    *\n");
        printf("\t\t*       5.修改住址         *\n");
        printf("\t\t*                    *\n");
        printf("\t\t*       6.修改电话         *\n");
        printf("\t\t*                    *\n");
        printf("\t\t*    输入其他任意键退出本模块     *\n");
        printf("\t\t******************************************\n");
        printf("\t\t请输入指令(1-6):");
        scanf_s("%*c%c", &num,1);
        if (num < '1' || num > '6')
        {
            printf("错误指令！\n\n");
            system("pause");
            continue;
        }
        system("cls");
        printf("请输入修改后的信息：");
        scanf_s("%s", message,100);
        switch (num)
        {
        case '1': strcpy_s(work[number].name,20, message); break;
        case '2': strcpy_s(work[number].edu,20, message); break;
        case '3': strcpy_s(work[number].position, 20,message); break;
        case '4': strcpy_s(work[number].wage,20, message); break;
        case '5': strcpy_s(work[number].address,100, message); break;
        case '6': strcpy_s(work[number].tel,15, message); break;
        }
        system("cls");
        printf("\n\n是否继续修改(Y/N):");
        scanf_s("%*c%c", &c,1);
        if (c == 'N' || c == 'n') break;
    }
    write();
}
 
//删除信息模块
void del()//删除职工信息
{
    char delete_ID[20];//删除职工工号
    int i, j;
    int flag;//标记是否有该职工信息
    char c;
    read();
    while (1)
    {
        system("cls");
        flag = 0;
        printf("请输入需删除职工信息的工号：");
        scanf_s("%s", delete_ID,20);
        for (i = 0; i < n; i++)
        {
            if (strcmp(work[i].ID, delete_ID) == 0)
            {
                n--;
                flag = 1;
                for (j = i; j < n; j++)
                {
                    work[j] = work[j + 1];
                }
                break;
            }
        }
        if (!flag) printf("\n\n无此员工信息！\n\n");
        else printf("\n\n删除成功！\n");
        printf("\n\n是否继续删除(Y/N):");
        scanf_s("%*c%c", &c,1);
        if (c == 'N' || c == 'n') break;
    }
    write();
}
 
//菜单模块
void menu()//菜单
{
    printf("\t\t************职工信息管理系统菜单**********\n");
    printf("\t\t*                    *\n");
    printf("\t\t*       1.录入职工信息      *\n");
    printf("\t\t*                    *\n");
    printf("\t\t*       2.显示职工信息      *\n");
    printf("\t\t*                    *\n");
    printf("\t\t*       3.查询职工信息      *\n");
    printf("\t\t*                    *\n");
    printf("\t\t*       4.修改职工信息      *\n");
    printf("\t\t*                    *\n");
    printf("\t\t*       5.删除职工信息      *\n");
    printf("\t\t*                    *\n");
    printf("\t\t*       0.退出          *\n");
    printf("\t\t*                    *\n");
    printf("\t\t******************************************\n");
    printf("\t\t请输入指令(0-5): ");
}
 
int main()
{
    int num;
    n = 0;
    system("color 0B");
    while (1)
    {
        menu();
        scanf_s("%d", &num,1);
        system("cls");
        switch (num)
        {
        case 1: input(); break;
        case 2: show(); break;
        case 3: que();  break;
        case 4: mod();  break;
        case 5: del();  break;
        case 0: printf("谢谢使用！\n\n"); return 0;
        default:printf("\n--->无效的指令!\n\n\n");
        }
        system("pause");
        system("cls");
    }
}
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  • 系统已结题 11月13日
  • 已采纳回答 11月5日
  • 创建了问题 11月4日

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