用c++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，以下是一个简单的学生信息管理系统的C++代码，包含了学生类的定义、各种功能函数的实现，以及主函数：

#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
using namespace std;

class Student {
public:
    string id; // 学号
    string name; // 姓名
    char gender; // 性别
    int score1; // 成绩1
    int score2; // 成绩2
    int totalScore; // 总成绩

    Student(string _id, string _name, char _gender, int _score1, int _score2) {
        id = _id;
        name = _name;
        gender = _gender;
        score1 = _score1;
        score2 = _score2;
        totalScore = score1 + score2;
    }
};

vector<Student> students; // 学生信息存储在vector中

// 根据学号查找学生
Student* searchById(string id) {
    for (int i = 0; i < students.size(); i++) {
        if (students[i].id == id) {
            return &students[i];
        }
    }
    return nullptr;
}

// 根据姓名查找学生
vector<Student*> searchByName(string name) {
    vector<Student*> results;
    for (int i = 0; i < students.size(); i++) {
        if (students[i].name == name) {
            results.push_back(&students[i]);
        }
    }
    return results;
}

// 根据性别查找学生
vector<Student*> searchByGender(char gender) {
    vector<Student*> results;
    for (int i = 0; i < students.size(); i++) {
        if (students[i].gender == gender) {
            results.push_back(&students[i]);
        }
    }
    return results;
}

// 按学号排序
void sortByid() {
    sort(students.begin(), students.end(), [](const Student& a, const Student& b) {
        return a.id < b.id;
    });
}

// 按成绩1排序
void sortByScore1() {
    sort(students.begin(), students.end(), [](const Student& a, const Student& b) {
        return a.score1 > b.score1;
    });
}

// 按成绩2排序
void sortByScore2() {
    sort(students.begin(), students.end(), [](const Student& a, const Student& b) {
        return a.score2 > b.score2;
    });
}

// 按总成绩排序
void sortByTotalScore() {
    sort(students.begin(), students.end(), [](const Student& a, const Student& b) {
        return a.totalScore > b.totalScore;
    });
}

int main() {
    // 添加一些学生信息
    students.push_back(Student("001", "Alice", 'F', 85, 90));
    students.push_back(Student("002", "Bob", 'M', 80, 95));
    students.push_back(Student("003", "Charlie", 'M', 90, 85));
    students.push_back(Student("004", "David", 'M', 75, 80));
    students.push_back(Student("005", "Eva", 'F', 95, 90));

    // 按学号排序
    sortByid();

    // 查询学生信息
    string id = "002";
    Student* s = searchById(id);
    if (s != nullptr) {
        cout << "ID: " << s->id << ", Name: " << s->name << ", Gender: " << s->gender << ", Score1: " << s->score1 << ", Score2: " << s->score2 << ", Total Score: " << s->totalScore << endl;
    }

    string name = "Charlie";
    vector<Student*> results = searchByName(name);
    for (int i = 0; i < results.size(); i++) {
        cout << "ID: " << results[i]->id << ", Name: " << results[i]->name << ", Gender: " << results[i]->gender << ", Score1: " << results[i]->score1 << ", Score2: " << results[i]->score2 << ", Total Score: " << results[i]->totalScore << endl;
    }

    char gender = 'F';
    results = searchByGender(gender);
    for (int i = 0; i < results.size(); i++) {
        cout << "ID: " << results[i]->id << ", Name: " << results[i]->name << ", Gender: " << results[i]->gender << ", Score1: " << results[i]->score1 << ", Score2: " << results[i]->score2 << ", Total Score: " << results[i]->totalScore << endl;
    }

    // 按成绩排序
    sortByScore1();
    for (int i = 0; i < students.size(); i++) {
        cout << "ID: " << students[i].id << ", Name: " << students[i].name << ", Gender: " << students[i].gender << ", Score1: " << students[i].score1 << ", Score2: " << students[i].score2 << ", Total Score: " << students[i].totalScore << endl;
    }

    sortByScore2();
    for (int i = 0; i < students.size(); i++) {
        cout << "ID: " << students[i].id << ", Name: " << students[i].name << ", Gender: " << students[i].gender << ", Score1: " << students[i].score1 << ", Score2: " << students[i].score2 << ", Total Score: " << students[i].totalScore << endl;
    }

    sortByTotalScore();
    for (int i = 0; i < students.size(); i++) {
        cout << "ID: " << students[i].id << ", Name: " << students[i].name << ", Gender: " << students[i].gender << ", Score1: " << students[i].score1 << ", Score2: " << students[i].score2 << ", Total Score: " << students[i].totalScore << endl;
    }

    return 0;
}

这个程序使用了一个vector来存储所有学生信息，然后实现了根据学号、姓名、性别进行查找学生，以及按学号、成绩1、成绩2、总成绩进行排序的功能。