注：略过部分题目，修改了题设要求，实现差不多的功能
1.使用字符数组。要求用户输入姓名，等第和年龄，输出其姓名和年龄，等第降一级（即字母高一级）。
#include<iostream>
using namespace std;
int main()
{
char first_name[15];
char last_name[15];
char grade;
int age;
cout << "What‘s your first name?" << endl;
cin >> first_name;
cout << "What‘s your last name?" << endl;
cin >> last_name;
cout << "What letter grade do you deserve?" << endl;
cin >> grade;
cout << "What‘s your age?" << endl;
cin >> age;
cout << "Name:"<<last_name << "," << first_name << endl;
cout << "Grade:" << char(grade + 1) << endl;
cout << "Age:" << age << endl;
system("pause");
}
2.使用string类；定义一个结构（如盒子）。要求用户输入盒子的材质和宽度，输出盒子的名字和体积。
#include<iostream>
#include<string>
using namespace std;
struct box
{
string box_material;
string box_name = "box";
double width;
};
int main()
{
box box1;
cout << "Enter the box‘s material:" << endl;
cin >> box1.box_material;
cout << "Enter the box‘s width(cm):" << endl;
cin >> box1.width;
cout << box1.box_material + box1.box_name << "." << endl;
cout << "Volume:" << box1.width*box1.width*box1.width << endl;
system("pause");
}
原文：https://www.cnblogs.com/banmei-brandy/p/11262845.html