工廠方法模式（英文：factory method pattern）係物件導向編程成日用嘅一種軟件設計模式，用工廠（喺 OOP 當中泛指曉建立第啲物件嘅物件）入面嘅方法嚟建立物件而唔係用建構子，途中唔使講明要建立嗰件物件係咩類別；用虛擬碼表達一件曉建立兩個類別嘅物件嘅工廠物件嘅話，段碼就會係好似以下噉[1]：
- 定義好類別 A；
- 定義好類別 B；
- 定義一件工廠物件
- 睇 input
- Switch (input)
- case 1
- 建立一件屬類別 A 嘅物件；
- case 2
- 建立一件屬類別 B 嘅物件；
- 睇 input
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