第十六周任务二

/*【任务2】学生成绩排序文件score.dat 中保存的是100 名学生的姓名和C++课、高数和英语成绩。（1）定义学生类，其中包含姓名、C++课、高数和英语成绩及总分、均分数据成员，成员函数根据需要确定。（2）读入这名学生的成绩，用对象数组进行存储。（3）求出各科和总分的最高分。（4）请按总分的降序（高成绩在前，低成绩在后）排序（5）在屏幕上显示各科及总分的最高分，排序后的成绩单（包括总分）保存到文件odered_score.dat中。*/#include <iostream>#include <fstream>#include <string>using namespace std;class Student{public:Student();void set_name(string name);void set_c_score(int c_score);void set_m_score(int m_score);void set_e_score(int e_score);void set_s_score(int s_score);void set_a_score(int a_score);string get_name(){return name;}int get_c_score(){return c_score;}int get_m_score(){return m_score;}int get_e_score(){return e_score;}int s_score;int a_score;private:string name;int c_score;int m_score; int e_score;};Student::Student(){name = '\0';c_score = 0;m_score = 0;e_score = 0;s_score = 0;a_score = 0;}void Student::set_name(string name){this->name = name;}void Student::set_c_score(int c_score){this-> c_score = c_score;}void Student::set_m_score(int m_score){this->m_score = m_score;}void Student::set_e_score(int e_score){this->e_score = e_score;}void Student::set_s_score(int s_score){this->s_score = s_score;}void Student::set_a_score(int a_score){this->a_score = a_score;}int main(){Student stu[100];int m;string n;ifstream infile("score.txt",ios::in);if (! infile){cerr << "open error" << endl;exit(1);}string name;int c_score;int m_score;int e_score;int s_score;int a_score;for (int i = 0; i < 100; i++ ){ infile >> name >> c_score >> m_score >> e_score;stu[i].set_name(name);stu[i].set_c_score(c_score);stu[i].set_m_score(m_score);stu[i].set_e_score(e_score);s_score = stu[i].get_c_score() + stu[i].get_m_score() + stu[i].get_e_score();stu[i].set_s_score(s_score);a_score = stu[i].s_score / 3;stu[i].set_a_score(a_score );}infile.close();int s_max = stu[0].s_score;for ( int i = 0; i < 100; i++ ){if ( stu[i].s_score > s_max ){s_max = stu[i].s_score;}}int c_max = stu[0].get_c_score();for ( int i = 0; i < 100; i++ ){if (stu[i].get_c_score() > c_max){c_max = stu[i].get_c_score();}}int m_max = stu[0].get_m_score();for ( int i = 0; i < 100; i++ ){if (stu[i].get_m_score() > m_max){m_max = stu[i].get_m_score();}}int e_max = stu[0].get_e_score();for ( int i = 0; i < 100; i++ ){if (stu[i].get_e_score() > e_max){e_max = stu[i].get_e_score();}}cout << "总分成绩最大值" << s_max << endl << "c++成绩最大值" << c_max << endl <<"高数成绩最大值" << m_max << endl << "英语成绩最大值" << e_max <<endl;for( int i = 0; i < 100; i++ )for ( int j = 0; j < 99 - i; j++ ){if ( stu[i].s_score > stu[i+1].s_score ){n = stu[i].get_name();stu[i].get_name() = stu[i+1].get_name();stu[i+1].get_name() = n;m = stu[i].s_score;stu[i].s_score = stu[i+1].s_score;stu[i+1].s_score = m;}}ofstream outfile("inscore.txt",ios::out);if (! outfile){cerr << "open error" << endl;exit(1);}for (int i = 0; i < 100; i++ ){ outfile << stu[i].get_name() << stu[i].get_c_score() << stu[i].get_m_score() << stu[i].get_e_score() << stu[i].s_score ;}outfile.close();system("pause");return 0;}