# summary

By [rojeck](https://paragraph.com/@rojeckluo) · 2021-12-05

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    To be honest, it is difficult to understand the seven principles of design patterns. In the study and application of design patterns, we often hear or see sentences such as "XXX pattern conforms to XXX principle" and "YYY pattern does not conform to YYY principle". . Therefore, in order to analyze the rationality of design patterns and improve our daily coding, it is very necessary to master and understand these seven principles.

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*Originally published on [rojeck](https://paragraph.com/@rojeckluo/summary)*