design pattern 【Design Pattern】Simple Factorydesign pattern [英語版]Understanding JavaServer Pages Model 2 architecture(Exploring the MVC design pattern)--1design pattern [Design Patterns] 4. Creation Patterndesign pattern
【Design Pattern】Simple Factorydesign pattern [英語版]Understanding JavaServer Pages Model 2 architecture(Exploring the MVC design pattern)--1design pattern [Design Patterns] 4. Creation Patterndesign pattern