arrayone.cpp

一本很好的C++学习的丛书！初学者必看的

// arrayone.cpp -- small arrays of integers
#include <iostream>
int main()
{
    using namespace std;
    int yams[3];    // creates array with three elements
    yams[0] = 7;    // assign value to first element
    yams[1] = 8;
    yams[2] = 6;

    int yamcosts[3] = {20, 30, 5}; // create, initialize array
// NOTE: If your C++ compiler or translator can't initialize
// this array, use static int yamcosts[3] instead of
// int yamcosts[3]

    cout << "Total yams = ";
    cout << yams[0] + yams[1] + yams[2] << endl;
    cout << "The package with " << yams[1] << " yams costs ";
    cout << yamcosts[1] << " cents per yam.\n";
    int total = yams[0] * yamcosts[0] + yams[1] * yamcosts[1];
    total = total + yams[2] * yamcosts[2];
    cout << "The total yam expense is " << total << " cents.\n";

    cout << "\nSize of yams array = " << sizeof yams;
    cout << " bytes.\n";
    cout << "Size of one element = " << sizeof yams[0];
    cout << " bytes.\n";
    return 0; 
}