博客介绍了代理模式的好处，远程代理可屏蔽实现位于不同地址空间的事实，虚拟代理能按需创建对象进行优化。还指出适用场景，当需要对对象进行更通用或复杂的引用而非简单指针时，适合使用代理模式。
Benefits:
• The remote proxy can shield the fact that the implementation resides in another address space.
• The virtual proxy can perform optimizations—for example, by creating objects on demand.
Applicable Scenario:
• The Proxy pattern is appropriate when a more versatile or sophisticated reference to an object, rather than a simple pointer, is needed.
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