rational.cs

这是.net2005学习不可缺少的教程

using System;

namespace Indexer
{
	/// <summary>
	/// Rational 的摘要说明。
	/// </summary>
	public class Rational
	{
		private int i;
		private Rational(Int32 i)
		{
			this.i=i;
		}
		private Int32 ToInt32()
		{
			return this.i;
		}
	
		//隐式转换
		public static implicit operator Rational(Int32 i)
		{return new Rational(i);}
		
		//显式转换
		public static explicit operator Int32(Rational r)
		{return r.ToInt32();}
		
	}

}