在AMTA會議上，主要參會人員一共有八個，其中對應他們的名字調出他們的職位以及愛好，年齡，性別等。要求輸入a時為名字，b為職位，c為個人簡稱，d為愛好，e為年齡，p為性別,q為顯示男女比例及退出。(case字母不區分大小寫。成員信息后續可以直接讀取txt文件，這里由于人員較少，我選擇直接手動給定一個數組。)

代碼如下：

//AMTA會議#include <iostream>using namespace std;const int strsize = 30; const int NUM = 8; double malenum = 0.0; double femalenum = 0.0; double ratio;//構造顯示函數： void display_name(); void display_title(); void display_amtaname(); void display_preference(); void display_age(); void display_sex();//構建結構體,其中s是性別的另一種表達，s=0,1;0為女性，1為男性 struct amta {char fullname[strsize];char title[strsize];char amtaname[strsize];char sports[strsize];int age;string sex;int s; };//輸入結構體數組的內容 amta people[8] ={{"Derri Bai", "Chief Executive Officer", "BCEO", "Basketball", 35, "male", 1},{"Smit Eri", "Junior Programmer", "JPS", "Ping Pong", 35, "male", 1},{"Tank Du", "Chairman of Board", "CBD", "Swim", 45, "female", 0},{"Tiger Guo", "Manager", "MG", "Liao Mei", 34, "male", 1},{"Pen Yu", "Analyst Trainee", "ATY", "Study", 43, "female", 0},{"Ha Huan", "Chief Maintenance Officer", "CMOH", "Game", 35, "male", 1},{"Bo Wan", "Chief Technology Officer", "CTOW", "Basketball", 34, "male", 1},{"SY San", "Staf", "WSYS", "Song", 32, "female", 0}};//定義顯示函數 void display_name() {for (int i = 0; i < NUM; i++)cout << "Fullname: " << people[i].fullname << endl; }void display_title() {for (int i = 0; i < NUM; i++)cout << "Title: " << people[i].title << endl; }void display_amtaname() {for (int i = 0; i < NUM; i++)cout << "Amtaname: " << people[i].amtaname << endl; }void display_preference() {for (int i = 0; i < NUM; i++)cout << people[i].fullname << " 's preference is: " << people[i].sports << endl; }void display_age() {for (int i = 0; i < NUM; i++)cout << people[i].fullname << " 's age is: " << people[i].age << endl; }void display_sex() {for (int i = 0; i < NUM; i++)cout << people[i].fullname << " 's sex is: " << people[i].sex << endl; }//主函數 int main() {char ch;cout << "Benevolent Order of Programmers Report" << endl;cout << "a. display by name b. display by title\n"<< "c. display by amtaname d. display by preference\n"<< "e. display by age p. display by sex\n"<< "q. putout ratio and quit" << endl;cout << "Enter a case: ";while (cin >> ch && ch != 'q' && ch != 'Q'){switch (ch){case 'a':case 'A':display_name();break;case 'b':case 'B':display_title();break;case 'c':case 'C':display_amtaname();break;case 'd':case 'D':display_preference();break;case 'e':case 'E':display_age();break;case 'p':case 'P':display_sex();break;}cout << "Next case: ";}//統計男女人數，輸出比例并計算比率for (int i = 0; i < NUM; i++){if (people[i].s == 1){malenum++;}else if (people[i].s == 0){femalenum++;}}ratio = malenum / femalenum;cout << "Number of male and female are: " << malenum << ":" << femalenum << endl;cout << "The ratio of people is：" << ratio << endl;cout << "Bye!" << endl;return 0; }

?結果如下：

?這道簡單的題目屬于自編題。

總結

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