C++ 数据类型示例

// 创建不同数据类型的变量
int items = 50;
double cost_per_item = 9.99;
double total_cost = items * cost_per_item;
char currency = '$';

// 打印变量
cout << "Number of items: " << items << "";
cout << "Cost per item: " << cost_per_item << currency << "";
cout << "Total cost = " << total_cost << currency << "";