5-6.txt

C#实验报告 C#实验报告 C#实验报告 C#实验报告 C#实验报告 C#实验报告 C#实验报告

 using System;
 class gump
{
    public void math_routines(double x,out double half,out double squared,out double cubed)
    //可以是:public void math_routines(//ref double x,out double half,out double squared,out double cubed)
    //但是,不可以这样:public void math_routines(out double x,out double half,out double squared,out double cubed),对本例来说,因为输出的值要靠x赋值,所以x    不能再为输出值
   {
           half=x/2;
           squared=x*x;
           cubed=x*x*x;
   }
}

class TestApp
{
    public static void Main()
   {
       gump doit=new gump();

       double x1=600;
       double half1=0;
       double squared1=0;
       double cubed1=0;
    
       /*
        double x1=600;
        double half1;
        double squared1;
        double cubed1;
       */

       Console.WriteLine("Before method->x1={0}",x1);
       Console.WriteLine("half1={0}",half1);
       Console.WriteLine("squared1={0}",squared1);
       Console.WriteLine("cubed1={0}",cubed1);

       doit.math_rountines(x1,out half1,out squared1,out cubed1);
    
       Console.WriteLine("After method->x1={0}",x1);
       Console.WriteLine("half1={0}",half1);
       Console.WriteLine("squared1={0}",squared1);
       Console.WriteLine("cubed1={0}",cubed1);
    }
}