😄C++--定义结构体

结构体：定义一组特征的对象

#include <iostream>
#include <cstring>

using namespace std;

// 定义结构体成员
struct  Books {
    char title[50];
    char author[50];
    char subject[100];
    int book_id;

};
int main(void) {
    Books book1; // 定义结构体类型Books 的变量book1
    Books book2; // 定义结构体类型Books 的变量book2

    // book1 
    strcpy_s(book1.title, "C++ tutor");
    strcpy_s(book1.author, "Runoob");
    strcpy_s(book1.subject, "code language");
    book1.book_id = 1234;

    // book2
    strcpy_s(book2.title, "CSS ");
    strcpy_s(book2.author, "Oliva");
    strcpy_s(book2.subject, "code");
    book2.book_id = 6789;

    //输出信息
    cout << "book1.title:" << book1.title << endl;
    cout << "book1.author:" << book1.author << endl;
    cout << "book1.subject:" << book1.subject << endl;
    cout << "book1.book_id:" << book1.book_id << endl;

    cout << "book2.title:" << book2.title << endl;
    cout << "book2.author:" << book2.author << endl;
    cout << "book2.subject:" << book2.subject << endl;
    cout << "book2.book_id:" << book2.book_id << endl;

    system("pause");
    return 0;

}

结果: