新手菜鸟求教，输4个int值，求乘积

Question

怎么弄啊  谢谢

Answer 1

编写一个控制台程序，要求用户输入4个int值，并显示他们的乘积  用convert.ToDouble的命令

Answer 2

控制台程序？web？winform？
你可以直接写的Console.WriteLine((第一个*第二个*第三个*第四个).ToString());显示的就是相乘后的结果了

Answer 3

double firstNumber, secondNumber, thirdNumber, fourthNumber;
            string userName;
            Console.WriteLine("Enter your name");
            userName = Console.ReadLine();
            Console.WriteLine("give me a number");
            firstNumber = Convert.ToDouble(Console.ReadLine());
            firstNumber = Convert.ToInt32(Console.ReadLine());
            Console.WriteLine("give me a number");
            secondNumber = Convert.ToDouble(Console.ReadLine());
            Console.WriteLine("give me a number");
            thirdNumber = Convert.ToDouble(Console.ReadLine());
            Console.WriteLine("give me a number");
            fourthNumber = Convert.ToDouble(Console.ReadLine());
            后面怎么写啊

Answer 4

double firstNumber, secondNumber, thirdNumber, fourthNumber;
  string userName;
  Console.WriteLine("Enter your name");
  userName = Console.ReadLine();
  Console.WriteLine("give me firstNumber");
  firstNumber = Convert.ToDouble(Console.ReadLine());
  Console.WriteLine("give me secondNumber");
  secondNumber = Convert.ToDouble(Console.ReadLine());
  Console.WriteLine("give me thirdNumber");
  thirdNumber = Convert.ToDouble(Console.ReadLine());
  Console.WriteLine("give me fourthNumber");
  fourthNumber = Convert.ToDouble(Console.ReadLine());
  //输出的内容必须是字符串型，而4个double型的相乘结果还是double型，所以最后要"ToString"
  Console.WriteLine((firstNumber*secondNumber*thirdNumber*fourthNumber).ToString());

Answer 5

    class Program
    {
        static void Main(string[] args)
        {
            double firstNumber, secondNumber, thirdNumber, fourthNumber;
            string userName;
            Console.WriteLine("Enter your name");
            userName = Console.ReadLine();
            Console.WriteLine("give me a number");
            firstNumber = Convert.ToInt32(Console.ReadLine());
            Console.WriteLine("give me a number");
            secondNumber = Convert.ToDouble(Console.ReadLine());
            Console.WriteLine("give me a number");
            thirdNumber = Convert.ToDouble(Console.ReadLine());
            Console.WriteLine("give me a number");
            fourthNumber = Convert.ToDouble(Console.ReadLine());            Console.WriteLine("{0}",firstNumber*secondNumber*thirdNumber*fourthNumber);
        }    }