Java design patterns
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This help documentation is mainly intended to introduce readers to the 23 design patterns including pattern
description, applicability, and part of die *, accompanied with Simple example Child, and class *, aims to make reading * learn 23 * gauge mode and design mode * can check out a variety
of usage, and points for attention.
The attached example is very simple, and slowly guides the reader from shallow to deep understanding of
design patterns, and can en