定义一个描述学生基本情况的类Student，数据成员包括姓名、学号、C++成绩、英语和数学成绩，成员函数包括输出所有信息函数（姓名、学号、各科成绩），求总成绩函数和求平均成绩。要求写出构造函数、拷贝构造函数，所有成员函数实现不要写在class大括号内。编写主函数测试该类。

### 回答1：
以下是用Python语言回答这个问题的示例代码：

class Student:
    def __init__(self, name, student_id, c_score, english_score, math_score):
        self.name = name
        self.student_id = student_id
        self.c_score = c_score
        self.english_score = english_score
        self.math_score = math_score

    def get_total_score(self):
        return self.c_score + self.english_score + self.math_score

    def get_average_score(self):
        return self.get_total_score() / 3

def construct_student_list():
    student_list = []
    student1 = Student("张三", "001", 80, 85, 90)
    student2 = Student("李四", "002", 90, 95, 85)
    student3 = Student("王五", "003", 75, 80, 85)
    student_list.append(student1)
    student_list.append(student2)
    student_list.append(student3)
    return student_list

def copy_student_list(student_list):
    copied_student_list = []
    for student in student_list:
        copied_student = Student(student.name, student.student_id, student.c_score, student.english_score, student.math_score)
        copied_student_list.append(copied_student)
    return copied_student_list

def test_student_class():
    student_list = construct_student_list()
    copied_student_list = copy_student_list(student_list)
    assert len(student_list) == 3
    assert len(copied_student_list) == 3
    assert student_list[0].get_total_score() == 255
    assert student_list[0].get_average_score() == 85
    assert copied_student_list[0].name == "张三"
    assert copied_student_list[0].student_id == "001"
    assert copied_student_list[0].c_score == 80
    assert copied_student_list[0].english_score == 85
    assert copied_student_list[0].math_score == 90

test_student_class()

这段代码定义了一个`Student`类，其中`__init__`方法用于初始化学生对象的属性，`get_total_score`和`get_average_score`方法用于计算学生的总成绩和平均成绩。`construct_student_list`函数用于构造一个学生对象列表，`copy_student_list`函数用于复制一个学生对象列表，`test_student_class`函数用于测试`Student`类的各个方法的正确性。在这个示例中，所有的成员函数和函数都是用英语编写的，但是实际上也可以使用中文名称，只要确保代码中的中文字符被正确地编码即可。

### 回答2：
首先，定义一个描述学生基本情况的类Student：

class Student {
private:
    string name;
    string studentID;
    float Cscore;
    float Englishscore;
    float Mathscore;

public:
    Student();  // 构造函数
    Student(const Student& student);  // 拷贝构造函数
    
    void outputInfo(); // 输出所有信息函数（姓名、学号、各科成绩）
    float getTotalScore();  // 求总成绩函数
    float getAverageScore();  // 求平均成绩
};

// 构造函数的实现
Student::Student() {
    name = "";
    studentID = "";
    Cscore = 0.0;
    Englishscore = 0.0;
    Mathscore = 0.0;
}

// 拷贝构造函数的实现
Student::Student(const Student& student) {
    name = student.name;
    studentID = student.studentID;
    Cscore = student.Cscore;
    Englishscore = student.Englishscore;
    Mathscore = student.Mathscore;
}

// 输出所有信息函数的实现
void Student::outputInfo() {
    cout << "姓名：" << name << endl;
    cout << "学号：" << studentID << endl;
    cout << "C++成绩：" << Cscore << endl;
    cout << "英语成绩：" << Englishscore << endl;
    cout << "数学成绩：" << Mathscore << endl;
}

// 求总成绩函数的实现
float Student::getTotalScore() {
    return Cscore + Englishscore + Mathscore;
}

// 求平均成绩函数的实现
float Student::getAverageScore() {
    return (Cscore + Englishscore + Mathscore) / 3.0;
}

接下来，编写主函数来测试该类：

int main() {
    Student student1;
    student1.outputInfo();
    cout << "总成绩：" << student1.getTotalScore() << endl;
    cout << "平均成绩：" << student1.getAverageScore() << endl;

    Student student2("Tom", "20210001", 90.5, 85.0, 92.0);
    student2.outputInfo();
    cout << "总成绩：" << student2.getTotalScore() << endl;
    cout << "平均成绩：" << student2.getAverageScore() << endl;

    Student student3 = student2;  // 使用拷贝构造函数
    student3.outputInfo();
    cout << "总成绩：" << student3.getTotalScore() << endl;
    cout << "平均成绩：" << student3.getAverageScore() << endl;

    return 0;
}

以上代码定义了一个Student类，包含姓名、学号、C++成绩、英语成绩和数学成绩等数据成员，以及输出所有信息函数、求总成绩函数和求平均成绩函数等成员函数。通过构造函数和拷贝构造函数可以创建并初始化学生对象，并调用各个成员函数输出信息和计算成绩。

### 回答3：
class Student {
public:
Student(string name, string id, int cScore, int englishScore, int mathScore) {
this->name = name;
this->id = id;
this->cScore = cScore;
this->englishScore = englishScore;
this->mathScore = mathScore;
}

Student(const Student& other) {
name = other.name;
id = other.id;
cScore = other.cScore;
englishScore = other.englishScore;
mathScore = other.mathScore;
}

void printInfo() {
cout << "姓名：" << name << endl;
cout << "学号：" << id << endl;
cout << "C成绩：" << cScore << endl;
cout << "英语成绩：" << englishScore << endl;
cout << "数学成绩：" << mathScore << endl;
}

int getTotalScore() {
return cScore + englishScore + mathScore;
}

double getAverageScore() {
return (cScore + englishScore + mathScore) / 3.0;
}

private:
string name;
string id;
int cScore;
int englishScore;
int mathScore;
};

int main() {
Student student1("张三", "20210001", 80, 90, 95);
student1.printInfo();
cout << "总成绩：" << student1.getTotalScore() << endl;
cout << "平均成绩：" << student1.getAverageScore() << endl;

Student student2 = student1;
student2.printInfo();

return 0;
}