陈啊阵 2023-03-27 20:28 采纳率: 100%
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请给出下列代码中的参数**表示什么**，我在需要解释的参数后面加了**//**(语言-c语言)

请给出下列代码中的参数表示什么，我在需要解释的参数后面加了**//**

#define _CRT_SECURE_NO_WARNINGS 1
#include "StudentManager.h"
 
struct Student* head = NULL;
struct Student* end = NULL;
 
void Menu()
{
    system("cls");
    printf("1.学生信息录入\n");
    printf("2.单个学生成绩查询\n");
    printf("3.查询全部学生成绩\n");
    printf("4.修改学生信息\n");
    printf("5.删除学生信息\n");
    printf("6.学生单科成绩录入\n");
    printf("7.班级内单科成绩排名\n");
    printf("8.退出系统\n");
 
    int choice;// 
    printf("请选择要使用的功能：\n");
loop:
    scanf("%d", &choice);
    switch (choice)
    {
    case 1:
        Add();
        Menu();
    case 2:
        View();
        Menu();
    case 3:
        ViewAll();
        Menu();
    case 4:
        Repair();
        Menu();
    case 5:
        Delete();
        Menu();
    case 6:
        AddOne();
        Menu();
    case 7:
        Rank();
        Menu();
    case 8:
        exit(0);
    default:
        printf("输入有误，请重新选择：");
        break;
    }
}
 
void Add()
{
    system("cls");
    int count;// 
    printf("请输入要录入信息的个数：");
    scanf("%d", &count);
 
    struct Student* s1, * s2, * temp;
    s1 = s2 = (struct Student*)malloc(LEN);
 
    if (head == NULL)
    {
        head = s1;
    }
    else
    {
        end->next = s1;
    }
 
    int i = 1;// 
    while (count > 0)
    {
        printf("请输入第%d位学生信息：\n", i++);
        printf("姓名：\n");
        scanf("%s", &s1->name);
        printf("学号：\n");
        scanf("%s", &s1->number);
        printf("班级：\n");
        scanf("%d", &s1->classID);
        printf("C语言成绩：\n");
        scanf("%d", &s1->C_Language);
        printf("数学成绩:\n");
        scanf("%d", &s1->Math);
        printf("英语成绩:\n");
        scanf("%d", &s1->English);
        count--;
        s2->next = s1;
        s2 = s1;
        s1 = (struct Student*)malloc(LEN);
        printf("添加成功！\n");
        system("pause");
        system("cls");
    }
    s2->next = NULL;
    end = s2;
    printf("全部添加成功！\n");
    system("pause");
}
 
void View()
{
    system("cls");
    struct Student* VS;
    printf("输入要查询信息的学生学号：\n");
    char num[10];// 
    int flag = 1;// 
    scanf("%s", &num);
    for (VS = head; VS != NULL;)
    {
        if (strcmp(VS->number, num) == 0)
        {
            printf("成功找到！\n");
            printf("姓名：%s\t学号：%s\t班级：%d\t\n", VS->name, VS->number, VS->classID);
            printf("C语言：%d\t数学:%d\t英语：%d\t\n", VS->C_Language, VS->Math, VS->English);
            flag = 0;
        }
        VS = VS->next;
    }
    if (flag != 0)
    {
        printf("不好意思，未找到！\n");
    }
    system("pause");
}
 
void ViewAll()
{
    system("cls");
    struct Student* VA;
    if (head != NULL)
    {
        printf("所有学生成绩如下：\n");
        for (VA = head; VA != NULL;)
        {
            printf("姓名：%s\t学号：%s\t班级：%d\t\n", VA->name, VA->number, VA->classID);
            printf("C语言：%d\t数学:%d\t英语：%d\t\n", VA->C_Language, VA->Math, VA->English);
            VA = VA->next;
        }
        printf("所有不及格科目超过两科的学生名单如下:\n");
        for (VA = head; VA != NULL;)
        {
            int lostNum = 0;// 
            if (VA->C_Language < 60)
            {
                lostNum++;
            }
            if (VA->Math < 60)
            {
                lostNum++;
            }
            if (VA->English < 60)
            {
                lostNum++;
            }
            if (lostNum > 1)
            {
                printf("姓名：%s\t\n", VA->name);
            }
            VA = VA->next;
        }
 
    }
    else
    {
        printf("该系统中还未录入信息\n");
    }
    system("pause");
}
 
void Repair()
{
    system("cls");
    struct Student* RS;
    char num[10];// 
    int flag = 1;// 
    printf("输入要修改成绩学生的学号：\n");
    scanf("%s", num);
    for (RS = head; RS != NULL;)
    {
        if (strcmp(RS->number, num) == 0)
        {
            printf("成功找到该学生\n");
            printf("姓名：%s\t学号：%s\t班级：%d\t\n", RS->number, RS->name, RS->classID);
            printf("C语言：%d\t数学:%d\t英语：%d\t\n", RS->C_Language, RS->Math, RS->English);
            flag = 0;
            printf("姓名：\n");
            scanf("%s", &RS->name);
            printf("学号：\n");
            scanf("%s", &RS->number);
            printf("班级：\n");
            scanf("%d", &RS->classID);
            printf("C语言成绩：\n");
            scanf("%d", &RS->C_Language);
            printf("数学成绩:\n");
            scanf("%d", &RS->Math);
            printf("英语成绩:\n");
            scanf("%d", &RS->English);
            printf("修改成功\n");
            system("pause");
        }
        RS = RS->next;
    }
    if (flag != 0)
    {
        printf("输入信息有误，未查询到");
        system("pause");
    }
}
 
void Delete()
{
    system("cls");
    int flag = 1;// 
    while (flag != 0)
    {
        printf("请输入要删除的学生学号：");
        char num[10];// 
        scanf("%s", &num); 
        struct Student* DS, * temp = head;
        for (DS = head; DS != NULL;)
        {
            if (strcmp(DS->number, num) == 0)
            {
                if (DS == head)
                {
                    head = DS->next;
                    flag = 0;
                    printf("删除成功！\n");
                    system("pause");
                }
                else
                {
                    flag = 0;
                    printf("删除成功！\n");
                    temp->next = DS->next;
                    free(DS);
                    system("pause");
                }
            }
            temp = DS;
            DS = DS->next;
        }
        if (flag != 0)
        {
            printf("未找到该学生学号！\n");
            system("pause");
        }
    }
}
 
void AddOne()
{
    system("cls");
    struct Student* AS = (struct Student*)malloc(sizeof(struct Student));
    AS->next = NULL;
    int flag = 1;// 
    while (flag != 0)
    {
        printf("请输入姓名：\n");
        scanf("%s", AS->name);
        printf("请输入学号：\n");
        scanf("%s", AS->number);
        printf("1.录入C语言成绩\n");
        printf("2.录入数学成绩\n");
        printf("3.录入英语成绩\n");
        int select;
        scanf("%d", &select);
        switch (select)
        {
        case 1:
            printf("请输入C语言成绩\n");
            scanf("%d", &AS->C_Language);
            break;
        case 2:
            printf("请输入数学成绩\n");
            scanf("%d", &AS->Math);
            break;
        case 3:
            printf("请输入英语成绩\n");
            scanf("%d", &AS->English);
            break;
        default:
            printf("输入错误，请重新输入\n");
            break;
        }
        printf("录入成功\n");
        flag = 0;
        struct Student* AO, * temp;
        if (head == NULL) {
            head = AS;
        }
        else
        {
            for (AO = head; AO->next != NULL;) {
                AO = AO->next;
            }
            AO->next = AS;
        }
        system("pause");
    }
}
 
void Rank() {
    system("cls");
    struct Student* p, * q;
    struct Student temp;
    printf("请选择要进行排名的科目：\n");
    printf("1.C语言\n");
    printf("2.数学\n");
    printf("3.英语\n");
    int choice;// 
    scanf("%d", &choice);
    for (p = head; p != NULL; p = p->next) {
        for (q = p->next; q != NULL; q = q->next) {
            int need_swap = 0;
            switch (choice) {
            case 1:
                if (p->C_Language < q->C_Language && p->classID == q->classID) {
                    need_swap = 1;
                }
                break;
            case 2:
                if (p->Math < q->Math && p->classID == q->classID) {
                    need_swap = 1;
                }
                break;
            case 3:
                if (p->English < q->English && p->classID == q->classID) {
                    need_swap = 1;
                }
                break;
            default:
                printf("输入有误，请重新选择：");
                break;
            }
 
            if (need_swap) {
                temp = *p;
                *p = *q;
                *q = temp;
                struct Student* temp_next = p->next;
                p->next = q->next;
                q->next = temp_next;
            }
        }
    }
    printf("按照班级和选择的科目进行排名：\n");
    for (struct Student* r = head; r != NULL; r = r->next) {
        printf("姓名：%s\t学号：%s\t班级：%d\t", r->name, r->number, r->classID);
        switch (choice) {
        case 1:
            printf("C语言：%d\n", r->C_Language);
            break;
        case 2:
            printf("数学：%d\n", r->Math);
            break;
        case 3:
            printf("英语：%d\n", r->English);
            break;
        default:
            printf("输入有误，请重新选择：");
            break;
        }
    }
    system("pause");
}
  • 写回答

5条回答 默认 最新

  • Huazie 全栈领域优质创作者 2023-03-27 20:52
    关注

    参考如下：

    #define _CRT_SECURE_NO_WARNINGS 1
#include "StudentManager.h"
 
struct Student* head = NULL;
struct Student* end = NULL;
 
void Menu()
{
    system("cls");
    printf("1.学生信息录入\n");
    printf("2.单个学生成绩查询\n");
    printf("3.查询全部学生成绩\n");
    printf("4.修改学生信息\n");
    printf("5.删除学生信息\n");
    printf("6.学生单科成绩录入\n");
    printf("7.班级内单科成绩排名\n");
    printf("8.退出系统\n");
 
    int choice;// 要使用的功能选择
    printf("请选择要使用的功能：\n");
loop:
    scanf("%d", &choice);
    switch (choice)
    {
    case 1:
        Add();
        Menu();
    case 2:
        View();
        Menu();
    case 3:
        ViewAll();
        Menu();
    case 4:
        Repair();
        Menu();
    case 5:
        Delete();
        Menu();
    case 6:
        AddOne();
        Menu();
    case 7:
        Rank();
        Menu();
    case 8:
        exit(0);
    default:
        printf("输入有误，请重新选择：");
        break;
    }
}
 
void Add()
{
    system("cls");
    int count;// 录入信息个数
    printf("请输入要录入信息的个数：");
    scanf("%d", &count);
 
    struct Student* s1, * s2, * temp;
    s1 = s2 = (struct Student*)malloc(LEN);
 
    if (head == NULL)
    {
        head = s1;
    }
    else
    {
        end->next = s1;
    }
 
    int i = 1;// 学生个数，从1开始
    while (count > 0)
    {
        printf("请输入第%d位学生信息：\n", i++);
        printf("姓名：\n");
        scanf("%s", &s1->name);
        printf("学号：\n");
        scanf("%s", &s1->number);
        printf("班级：\n");
        scanf("%d", &s1->classID);
        printf("C语言成绩：\n");
        scanf("%d", &s1->C_Language);
        printf("数学成绩:\n");
        scanf("%d", &s1->Math);
        printf("英语成绩:\n");
        scanf("%d", &s1->English);
        count--;
        s2->next = s1;
        s2 = s1;
        s1 = (struct Student*)malloc(LEN);
        printf("添加成功！\n");
        system("pause");
        system("cls");
    }
    s2->next = NULL;
    end = s2;
    printf("全部添加成功！\n");
    system("pause");
}
 
void View()
{
    system("cls");
    struct Student* VS;
    printf("输入要查询信息的学生学号：\n");
    char num[10];// 要查询的学生学号
    int flag = 1;// 查询标识，1 未找到  0 找到了
    scanf("%s", &num);
    for (VS = head; VS != NULL;)
    {
        if (strcmp(VS->number, num) == 0)
        {
            printf("成功找到！\n");
            printf("姓名：%s\t学号：%s\t班级：%d\t\n", VS->name, VS->number, VS->classID);
            printf("C语言：%d\t数学:%d\t英语：%d\t\n", VS->C_Language, VS->Math, VS->English);
            flag = 0;
        }
        VS = VS->next;
    }
    if (flag != 0)
    {
        printf("不好意思，未找到！\n");
    }
    system("pause");
}
 
void ViewAll()
{
    system("cls");
    struct Student* VA;
    if (head != NULL)
    {
        printf("所有学生成绩如下：\n");
        for (VA = head; VA != NULL;)
        {
            printf("姓名：%s\t学号：%s\t班级：%d\t\n", VA->name, VA->number, VA->classID);
            printf("C语言：%d\t数学:%d\t英语：%d\t\n", VA->C_Language, VA->Math, VA->English);
            VA = VA->next;
        }
        printf("所有不及格科目超过两科的学生名单如下:\n");
        for (VA = head; VA != NULL;)
        {
            int lostNum = 0;// 不及格科目超过两科的学生总数
            if (VA->C_Language < 60)
            {
                lostNum++;
            }
            if (VA->Math < 60)
            {
                lostNum++;
            }
            if (VA->English < 60)
            {
                lostNum++;
            }
            if (lostNum > 1)
            {
                printf("姓名：%s\t\n", VA->name);
            }
            VA = VA->next;
        }
 
    }
    else
    {
        printf("该系统中还未录入信息\n");
    }
    system("pause");
}
 
void Repair()
{
    system("cls");
    struct Student* RS;
    char num[10];// 要修改成绩的学生学号
    int flag = 1;// 标识 1：未找到要修改的学生  0 ： 找到了要修改的学生
    printf("输入要修改成绩学生的学号：\n");
    scanf("%s", num);
    for (RS = head; RS != NULL;)
    {
        if (strcmp(RS->number, num) == 0)
        {
            printf("成功找到该学生\n");
            printf("姓名：%s\t学号：%s\t班级：%d\t\n", RS->number, RS->name, RS->classID);
            printf("C语言：%d\t数学:%d\t英语：%d\t\n", RS->C_Language, RS->Math, RS->English);
            flag = 0;
            printf("姓名：\n");
            scanf("%s", &RS->name);
            printf("学号：\n");
            scanf("%s", &RS->number);
            printf("班级：\n");
            scanf("%d", &RS->classID);
            printf("C语言成绩：\n");
            scanf("%d", &RS->C_Language);
            printf("数学成绩:\n");
            scanf("%d", &RS->Math);
            printf("英语成绩:\n");
            scanf("%d", &RS->English);
            printf("修改成功\n");
            system("pause");
        }
        RS = RS->next;
    }
    if (flag != 0)
    {
        printf("输入信息有误，未查询到");
        system("pause");
    }
}
 
void Delete()
{
    system("cls");
    int flag = 1;// 标识，1：未找到待删除的学生  0：找到了待删除的学生
    while (flag != 0)
    {
        printf("请输入要删除的学生学号：");
        char num[10];// 待删除的学生学号
        scanf("%s", &num); 
        struct Student* DS, * temp = head;
        for (DS = head; DS != NULL;)
        {
            if (strcmp(DS->number, num) == 0)
            {
                if (DS == head)
                {
                    head = DS->next;
                    flag = 0;
                    printf("删除成功！\n");
                    system("pause");
                }
                else
                {
                    flag = 0;
                    printf("删除成功！\n");
                    temp->next = DS->next;
                    free(DS);
                    system("pause");
                }
            }
            temp = DS;
            DS = DS->next;
        }
        if (flag != 0)
        {
            printf("未找到该学生学号！\n");
            system("pause");
        }
    }
}
 
void AddOne()
{
    system("cls");
    struct Student* AS = (struct Student*)malloc(sizeof(struct Student));
    AS->next = NULL;
    int flag = 1;// 标识 0：添加学生信息成功 1：未成功 
    while (flag != 0)
    {
        printf("请输入姓名：\n");
        scanf("%s", AS->name);
        printf("请输入学号：\n");
        scanf("%s", AS->number);
        printf("1.录入C语言成绩\n");
        printf("2.录入数学成绩\n");
        printf("3.录入英语成绩\n");
        int select;
        scanf("%d", &select);
        switch (select)
        {
        case 1:
            printf("请输入C语言成绩\n");
            scanf("%d", &AS->C_Language);
            break;
        case 2:
            printf("请输入数学成绩\n");
            scanf("%d", &AS->Math);
            break;
        case 3:
            printf("请输入英语成绩\n");
            scanf("%d", &AS->English);
            break;
        default:
            printf("输入错误，请重新输入\n");
            break; // 这里退出逻辑有问题，break退出switch，还是会执行后面录入成功后面的语句
        }
        printf("录入成功\n");
        flag = 0;
        struct Student* AO, * temp;
        if (head == NULL) {
            head = AS;
        }
        else
        {
            for (AO = head; AO->next != NULL;) {
                AO = AO->next;
            }
            AO->next = AS;
        }
        system("pause");
    }
}
 
void Rank() {
    system("cls");
    struct Student* p, * q;
    struct Student temp;
    printf("请选择要进行排名的科目：\n");
    printf("1.C语言\n");
    printf("2.数学\n");
    printf("3.英语\n");
    int choice;// 要进行排名的科目选择
    scanf("%d", &choice);
    for (p = head; p != NULL; p = p->next) {
        for (q = p->next; q != NULL; q = q->next) {
            int need_swap = 0;
            switch (choice) {
            case 1:
                if (p->C_Language < q->C_Language && p->classID == q->classID) {
                    need_swap = 1;
                }
                break;
            case 2:
                if (p->Math < q->Math && p->classID == q->classID) {
                    need_swap = 1;
                }
                break;
            case 3:
                if (p->English < q->English && p->classID == q->classID) {
                    need_swap = 1;
                }
                break;
            default:
                printf("输入有误，请重新选择：");
                break;
            }
 
            if (need_swap) {
                temp = *p;
                *p = *q;
                *q = temp;
                struct Student* temp_next = p->next;
                p->next = q->next;
                q->next = temp_next;
            }
        }
    }
    printf("按照班级和选择的科目进行排名：\n");
    for (struct Student* r = head; r != NULL; r = r->next) {
        printf("姓名：%s\t学号：%s\t班级：%d\t", r->name, r->number, r->classID);
        switch (choice) {
        case 1:
            printf("C语言：%d\n", r->C_Language);
            break;
        case 2:
            printf("数学：%d\n", r->Math);
            break;
        case 3:
            printf("英语：%d\n", r->English);
            break;
        default:
            printf("输入有误，请重新选择：");
            break;
        }
    }
    system("pause");
}
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