forecaster.cs

这个程序不错哟 这个是本人写的 哈哈 见笑了

using System;
using System.Collections;

namespace WeatherLib
{
  public enum Weather
  {
    Fair,
    PartlyCloudy,
    Cloudy,
    Rain,
    Snow,
    Sleet,
    Fog
  }

  public enum WindDirection
  {
    North,
    NorthEast,
    East,
    SouthEast,
    South,
    SouthWest,
    West,
    NorthWest
  }

  public class Forecast
  {
    static Random gen = new Random ();

    public Forecast (int daysAway)
    {
      // Okay, this is the cheap hack.
      // Return totally random numbers:

      HighTemp = gen.Next (0, 95);
      LowTemp = HighTemp - gen.Next (5, 40);
      WindSpeed = gen.Next (2, 80);
      direction = (WindDirection) gen.Next (7);
      prediction = (Weather)gen.Next (6);
      DateTime predDay = DateTime.Today;
      predDay = predDay.AddDays (daysAway);
      forecastDate = predDay;
    }

    private decimal hi;
    public decimal HighTemp
    {
      get 
      {
        return hi;
      }
      set
      {
        hi = value;
      }
    
    }

    private decimal lo;
    public decimal LowTemp
    {
      get
      {
        return lo;
      }
      set 
      {
        lo = value;
      }
    }

    private int wind;
    public int     WindSpeed
    {
      get
      {
        return wind;
      }
      set 
      {
        wind = value;
      }
    }

    private WindDirection dir;
    public WindDirection direction
    {
      get
      {
        return dir;
      }
      set
      {
        dir = value;
      }
    }

    private Weather pred;
    public Weather prediction
    {
      get
      {
        return pred;
      }
      set
      {
        pred = value;
      }
    }

    private DateTime theDate;
    public DateTime forecastDate
    {
      get
      {
        return theDate;
      }
      set 
      {
        theDate = value;
      }
    }
  }

	/// <summary>
	/// Summary description for Class1.
	/// </summary>
  public class WeatherForecast : IEnumerable
  {
    
    private class weatherEnum : IEnumerator
    {
      public weatherEnum (WeatherForecast coll)
      {
        Collection = coll;
      }

      int index=-1;
      WeatherForecast Collection;
    
      #region IEnumerator Members

      public void Reset()
      {
        index = -1;
      }

      public object Current
      {
        get
        {
          return Collection[index];
        }
      }

      public bool MoveNext()
      {
        ++index;
        return (index < Collection.Count);
      }

      #endregion
    }
                          
    public WeatherForecast(string city)
    {
      //
      // TODO: Add constructor logic here
      //
    }

    int Count
    {
      get
      {
        return 10; // more than a five day forecast is pointless.
      }
    }
    Forecast this [int daysAway]
    {
      get
      {
        return new Forecast (daysAway);
      }
    }
  
  
    #region IEnumerable Members

    public IEnumerator GetEnumerator()
    {
      return new weatherEnum (this);
    }

    #endregion
  }
}