05. foreach循环

#include <iostream>

int main()
{
    double prices[5] = {4.99, 10.99, 6.87, 7.99, 8.49};
    for (double x : prices)
    {
        std::cout << x << " ";
    }
    std::cout << std::endl;

    for (double &x : prices)
    {
        x = 1;
    }
    for (double x : prices)
    {
        std::cout << x << " ";
    }
    std::cout << std::endl;
}