C++学习摘要记录

自定义数据结构

在函数内部自定义数据结构 :

struct Sales_data {
    std::string bookNo;
    unsigned units_sold = 0;
    double revenue = 0.0;
};

void testSales_data() {
    Sales_data data1, datda2;
    double price = 0;
    cin >> data1.bookNo >> data1.units_sold >> price;
    data1.revenue = data1.units_sold * price;
}