ch2_06.cs

《c#技术内幕代码》

using System;
class CH2_6
{
    static void Main()
    {
       int x = 10;
       
       Console.WriteLine("Before calling non-ref function, x = {0}", x );
       NonRefFunction( x );
       Console.WriteLine("After calling non-ref function, x = {0}", x );
       RefFunction( ref x );
       Console.WriteLine("After calling ref function, x = {0}", x );
    }
    
    static void NonRefFunction( int x )
    {
       Console.WriteLine( "Top of NonRefFunction. X = {0}", x );
       x = x + 10;
       Console.WriteLine( "Bottom of NonRefFunction. X = {0}", x );
    }
       
    static void RefFunction( ref int x )
    {
       Console.WriteLine( "Top of RefFunction. X = {0}", x );
       x = x + 10;
       Console.WriteLine( "Bottom of RefFunction. X = {0}", x );
    }
}