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·¿ÎÝÀà House.cs
public abstract class House
{
//¸´ÔÓ¹¹Ôì
public string Wall { get; set; }
public string Door { get; set; }
public string Windows { get; set; }
public string Floor { get; set; }
public string HouseCeiling { get; set; }
}  
BuilderÉú³ÉÆ÷  Builder.cs
public abstract class House
{
//¸´ÔÓ¹¹Ôì
public string Wall { get; set; }
public string Door { get; set; }
public string Windows { get; set; }
public string Floor { get; set; }
public string HouseCeiling { get; set; }
}
 GameManager ÀàÓÃÀ´Ê¹Ó㨹¹½¨·¿ÎÝ£¬ÊÇÂß¼­½á¹¹±È½ÏÎȶ¨µÄ²¿·Ö£©  GameManager.cs
public class GameManager
{
//ÏÂÃæ¼Ç¼µÄÊÇϵͳµÄ´¦Àí¹ý³Ì£¬Ò²ÊÇÏà¶ÔÎȶ¨µÄ²¿·Ö£¨½á¹¹£©,
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public static House CreateHouse(Builder builder)
{
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builder.BuildDoor();
builder.BuildDoor();


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