这是一个可用来创建单例类实例确不需要为每个特定的类重写单例模式代码的可重用的类。

This is a class that can be used repeatedly to instantiate a class as a singleton without having to re-write the singleton pattern code for that specific class.

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为了使用流行的设计模式（MVC），您必须重写公司 Web 站点的代码，使模型和视图不特定于某种编程语言。

Using a popular design pattern (MVC), you must rewrite the code of the corporate Web site so the model and the view are not bound to a particular programming language.

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基于配置和负载均衡器的负载均衡模式，请求被重写或传递到Server 1或Server 2或Server 3。

Based on the configuration and load-balancing pattern of the load Balancer, the request will be rewritten and passed to Server1 or Server 2 or Server 3.

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