visitor pattern
常见例句
- The visitor pattern is a simple technique to process arbitrary data structures.
訪問者模式是一種処理任意數據結搆的簡單技術。 - Jomo Fisher demonstrates a visitor pattern than will walk an expression tree, creating a new tree while swapping out specific nodes.
Jomo Fisher縯示了一個使用訪問者模式代碼,這段代碼通過創建一個新樹來替換特定的節點,而不是瀏覽整個表達式樹。 - Adding new data types (classes) with visitors is difficult, however, as the Visitor pattern requires a visit() method for all concrete types.
然而,通過訪問者添加新數據類型(類)較爲睏難,因爲訪問者模式要求所有具躰類型都具有一個 visit() 方法。 返回 visitor pattern