学生成绩信息包括：学号，姓名，语文成绩、数学成绩、英语成绩。 主要功能： 1、 学生信息录入； 2、 学生信息浏览； 3、 信息查询（a 按学号查 b 按最高分查（查询每门课的最高分的同学信息）） 4、 信息排序（a 按总分排序（从高到低）b 按姓名排序 ） 5、 信息删除（给定学号，删除该学生信息） 6、 信息修改（给定学号，修改该学生信息） 7、 保存信息（把当前的结构体数组内容保存 8、 退出c语言程序设计

这个需求可以通过使用结构体数组来实现。首先需要定义一个包含学号、姓名、语文成绩、数学成绩、英语成绩的结构体，然后再定义一个结构体数组来存储所有学生的信息。

下面是一个简单的示例代码，其中包括上述所有功能：

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

#define MAX_STUDENTS 100

struct student {
    int id;
    char name[20];
    int chinese;
    int math;
    int english;
    int total;
};

struct student students[MAX_STUDENTS];
int num_students = 0;

void add_student() {
    if (num_students >= MAX_STUDENTS) {
        printf("Too many students, cannot add more.\n");
        return;
    }

    struct student s;
    printf("Enter student ID: ");
    scanf("%d", &s.id);
    printf("Enter student name: ");
    scanf("%s", s.name);
    printf("Enter Chinese score: ");
    scanf("%d", &s.chinese);
    printf("Enter Math score: ");
    scanf("%d", &s.math);
    printf("Enter English score: ");
    scanf("%d", &s.english);
    s.total = s.chinese + s.math + s.english;

    students[num_students] = s;
    num_students++;
    printf("Student added.\n");
}

void print_student(struct student s) {
    printf("%d\t%s\t%d\t%d\t%d\t%d\n", s.id, s.name, s.chinese, s.math, s.english, s.total);
}

void list_students() {
    printf("ID\tName\tChinese\tMath\tEnglish\tTotal\n");
    for (int i = 0; i < num_students; i++) {
        print_student(students[i]);
    }
}

void find_student_by_id(int id) {
    for (int i = 0; i < num_students; i++) {
        if (students[i].id == id) {
            printf("Found student:\n");
            print_student(students[i]);
            return;
        }
    }
    printf("Student not found.\n");
}

void find_highest_score() {
    int max_chinese = 0;
    int max_math = 0;
    int max_english = 0;
    for (int i = 0; i < num_students; i++) {
        if (students[i].chinese > max_chinese) {
            max_chinese = students[i].chinese;
        }
        if (students[i].math > max_math) {
            max_math = students[i].math;
        }
        if (students[i].english > max_english) {
            max_english = students[i].english;
        }
    }

    printf("Students with highest scores:\n");
    for (int i = 0; i < num_students; i++) {
        if (students[i].chinese == max_chinese || students[i].math == max_math || students[i].english == max_english) {
            print_student(students[i]);
        }
    }
}

void sort_by_total() {
    for (int i = 0; i < num_students - 1; i++) {
        for (int j = i + 1; j < num_students; j++) {
            if (students[i].total < students[j].total) {
                struct student temp = students[i];
                students[i] = students[j];
                students[j] = temp;
            }
        }
    }
    printf("Students sorted by total score:\n");
    list_students();
}

void sort_by_name() {
    for (int i = 0; i < num_students - 1; i++) {
        for (int j = i + 1; j < num_students; j++) {
            if (strcmp(students[i].name, students[j].name) > 0) {
                struct student temp = students[i];
                students[i] = students[j];
                students[j] = temp;
            }
        }
    }
    printf("Students sorted by name:\n");
    list_students();
}

void delete_student(int id) {
    int index = -1;
    for (int i = 0; i < num_students; i++) {
        if (students[i].id == id) {
            index = i;
            break;
        }
    }

    if (index == -1) {
        printf("Student not found.\n");
        return;
    }

    for (int i = index; i < num_students - 1; i++) {
        students[i] = students[i + 1];
    }
    num_students--;
    printf("Student deleted.\n");
}

void modify_student(int id) {
    int index = -1;
    for (int i = 0; i < num_students; i++) {
        if (students[i].id == id) {
            index = i;
            break;
        }
    }

    if (index == -1) {
        printf("Student not found.\n");
        return;
    }

    printf("Enter new Chinese score: ");
    scanf("%d", &students[index].chinese);
    printf("Enter new Math score: ");
    scanf("%d", &students[index].math);
    printf("Enter new English score: ");
    scanf("%d", &students[index].english);
    students[index].total = students[index].chinese + students[index].math + students[index].english;
    printf("Student modified.\n");
}

void save_students() {
    FILE *fp = fopen("students.txt", "w");
    if (fp == NULL) {
        printf("Error opening file.\n");
        return;
    }

    fprintf(fp, "%d\n", num_students);
    for (int i = 0; i < num_students; i++) {
        fprintf(fp, "%d %s %d %d %d\n", students[i].id, students[i].name, students[i].chinese, students[i].math, students[i].english);
    }

    fclose(fp);
    printf("Students saved to file.\n");
}

void load_students() {
    FILE *fp = fopen("students.txt", "r");
    if (fp == NULL) {
        printf("Error opening file.\n");
        return;
    }

    fscanf(fp, "%d\n", &num_students);
    for (int i = 0; i < num_students; i++) {
        struct student s;
        fscanf(fp, "%d %s %d %d %d\n", &s.id, s.name, &s.chinese, &s.math, &s.english);
        s.total = s.chinese + s.math + s.english;
        students[i] = s;
    }

    fclose(fp);
    printf("Students loaded from file.\n");
}

int main() {
    int choice = 0;
    while (choice != 8) {
        printf("\n");
        printf("1. Add student\n");
        printf("2. List students\n");
        printf("3. Find student by ID\n");
        printf("4. Find highest score\n");
        printf("5. Sort by total score\n");
        printf("6. Sort by name\n");
        printf("7. Delete student\n");
        printf("8. Modify student\n");
        printf("9. Save students to file\n");
        printf("10. Load students from file\n");
        printf("11. Exit\n");
        printf("Enter your choice: ");
        scanf("%d", &choice);

        switch (choice) {
            case 1:
                add_student();
                break;
            case 2:
                list_students();
                break;
            case 3:
                printf("Enter student ID: ");
                int id;
                scanf("%d", &id);
                find_student_by_id(id);
                break;
            case 4:
                find_highest_score();
                break;
            case 5:
                sort_by_total();
                break;
            case 6:
                sort_by_name();
                break;
            case 7:
                printf("Enter student ID: ");
                int id_to_delete;
                scanf("%d", &id_to_delete);
                delete_student(id_to_delete);
                break;
            case 8:
                printf("Enter student ID: ");
                int id_to_modify;
                scanf("%d", &id_to_modify);
                modify_student(id_to_modify);
                break;
            case 9:
                save_students();
                break;
            case 10:
                load_students();
                break;
            case 11:
                printf("Exiting...\n");
                break;
            default:
                printf("Invalid choice.\n");
                break;
        }
    }

    return 0;
}

这个程序使用了一个文件来保存学生信息，这样即使程序退出了，学生信息也不会丢失。在程序启动时，可以尝试从文件中读取学生信息，如果文件不存在或格式不正确，则会忽略文件。在程序退出时，会将当前的学生信息保存到文件中。可以根据需要更改文件名和路径。