摘要: ★★★★☆ 为其他对象提供一种代理以控制对这个对象的访问。 Provide a surrogate or placeholder for another object to control access to it. 阅读全文
posted @ 2007-08-30 20:55 sekihin 阅读(441) 评论(0) 推荐(0)
摘要: ★☆☆☆☆ 运用共享技术有效地支持大量细粒度的对象。 Use sharing to support large numbers of fine-grained objects efficiently. 阅读全文
posted @ 2007-08-30 15:10 sekihin 阅读(434) 评论(0) 推荐(0)