Quality of life is not what you get but what you become

//---------------------------------------------------------------------------
/****************************************************************************
練習5-4：寫一個程式將公里(kilometer)轉換為英哩(mile)。                               *
                英哩 = 公里 X 0.6213712                                                     *
****************************************************************************/
#include <iostream>
//---------------------------------------------------------------------------
float number;

int main(int argc, char* argv[])
{
        std::cout << "Enter a number of kilometer, and the system will change "
             << "it to the mile:";
        std::cin >> number;
        std::cout << number << " kilometer = " << number*0.6213712 << " mile";
        std::system("pause");
        return 0;
}
//---------------------------------------------------------------------------


題目來源：C++風格與藝術 第二版 Steve Oualline 著 黃吉霈 編譯
答案來源：自我撰寫(不保證正確喔)