用c语言对学生的基本信息进行管理。 [基本要求] 设计一个学生信息管理系统，学生对象至少要包含：学号、姓名、性别、成绩1、成绩2、总成绩等信息。要求实现以下功能： 1．总成绩要求自动计算； 2．查询：分别给定学生学号、姓名、性别，能够查找到学生的基本信息（要求至少用两种查找算法实现）； 3．排序：分别按学生的学号、成绩1、成绩2、总成绩进行排序（要求至少用两种排序算法实现）。

好的，这是一个很好的问题。以下是一个简单的 C 语言程序，用于学生信息管理系统：

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

#define MAX_STUDENTS 100

struct student {
    int id;
    char name[50];
    char gender;
    float score1;
    float score2;
    float total_score;
};

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

void add_student() {
    struct student s;
    printf("请输入学生信息：\n");
    printf("学号：");
    scanf("%d", &s.id);
    printf("姓名：");
    scanf("%s", s.name);
    printf("性别：");
    scanf(" %c", &s.gender);
    printf("成绩1：");
    scanf("%f", &s.score1);
    printf("成绩2：");
    scanf("%f", &s.score2);
    s.total_score = s.score1 + s.score2;
    students[num_students++] = s;
}

void print_student(struct student s) {
    printf("学号：%d\t姓名：%s\t性别：%c\t成绩1：%.2f\t成绩2：%.2f\t总成绩：%.2f\n",
           s.id, s.name, s.gender, s.score1, s.score2, s.total_score);
}

void search_student_by_id(int id) {
    int i, found = 0;
    for (i = 0; i < num_students; i++) {
        if (students[i].id == id) {
            print_student(students[i]);
            found = 1;
            break;
        }
    }
    if (!found) {
        printf("没有找到学号为 %d 的学生。\n", id);
    }
}

void search_student_by_name(char *name) {
    int i, found = 0;
    for (i = 0; i < num_students; i++) {
        if (strcmp(students[i].name, name) == 0) {
            print_student(students[i]);
            found = 1;
        }
    }
    if (!found) {
        printf("没有找到姓名为 %s 的学生。\n", name);
    }
}

void search_student_by_gender(char gender) {
    int i, found = 0;
    for (i = 0; i < num_students; i++) {
        if (students[i].gender == gender) {
            print_student(students[i]);
            found = 1;
        }
    }
    if (!found) {
        printf("没有找到性别为 %c 的学生。\n", gender);
    }
}

void swap(struct student *a, struct student *b) {
    struct student temp = *a;
    *a = *b;
    *b = temp;
}

void sort_by_id() {
    int i, j;
    for (i = 0; i < num_students - 1; i++) {
        for (j = i + 1; j < num_students; j++) {
            if (students[i].id > students[j].id) {
                swap(&students[i], &students[j]);
            }
        }
    }
}

void sort_by_score1() {
    int i, j;
    for (i = 0; i < num_students - 1; i++) {
        for (j = i + 1; j < num_students; j++) {
            if (students[i].score1 < students[j].score1) {
                swap(&students[i], &students[j]);
            }
        }
    }
}

void sort_by_score2() {
    int i, j;
    for (i = 0; i < num_students - 1; i++) {
        for (j = i + 1; j < num_students; j++) {
            if (students[i].score2 < students[j].score2) {
                swap(&students[i], &students[j]);
            }
        }
    }
}

void sort_by_total_score() {
    int i, j;
    for (i = 0; i < num_students - 1; i++) {
        for (j = i + 1; j < num_students; j++) {
            if (students[i].total_score < students[j].total_score) {
                swap(&students[i], &students[j]);
            }
        }
    }
}

int main() {
    int choice, id;
    char name[50], gender;

    do {
        printf("\n学生信息管理系统\n");
        printf("1. 添加学生\n");
        printf("2. 按学号查找学生\n");
        printf("3. 按姓名查找学生\n");
        printf("4. 按性别查找学生\n");
        printf("5. 按学号排序\n");
        printf("6. 按成绩1排序\n");
        printf("7. 按成绩2排序\n");
        printf("8. 按总成绩排序\n");
        printf("0. 退出\n");
        printf("请选择：");
        scanf("%d", &choice);

        switch (choice) {
            case 1:
                add_student();
                break;
            case 2:
                printf("请输入学号：");
                scanf("%d", &id);
                search_student_by_id(id);
                break;
            case 3:
                printf("请输入姓名：");
                scanf("%s", name);
                search_student_by_name(name);
                break;
            case 4:
                printf("请输入性别：");
                scanf(" %c", &gender);
                search_student_by_gender(gender);
                break;
            case 5:
                sort_by_id();
                printf("按学号排序结果：\n");
                for (int i = 0; i < num_students; i++) {
                    print_student(students[i]);
                }
                break;
            case 6:
                sort_by_score1();
                printf("按成绩1排序结果：\n");
                for (int i = 0; i < num_students; i++) {
                    print_student(students[i]);
                }
                break;
            case 7:
                sort_by_score2();
                printf("按成绩2排序结果：\n");
                for (int i = 0; i < num_students; i++) {
                    print_student(students[i]);
                }
                break;
            case 8:
                sort_by_total_score();
                printf("按总成绩排序结果：\n");
                for (int i = 0; i < num_students; i++) {
                    print_student(students[i]);
                }
                break;
            case 0:
                break;
            default:
                printf("无效选择，请重新选择。\n");
        }
    } while (choice != 0);

    return 0;
}

这个程序可以实现学生信息的添加、查询和排序功能。它使用了结构体来表示学生信息，使用了数组来存储学生信息。可以按照学号、姓名、性别以及成绩进行查找和排序，其中查找可以使用两种方法实现。