理学 设计模式 释 visitor pattern 访问者模式 描述在一个对象结构中对某个对象元素需要执行的操作一种设计模式，使用该模式可以在不改变被操作元素的类的前提下定义作用于这些元素的新操作。
软件工程 释文 visitor pattern 访问者模式
- right semi-chain ring
- right semicontinuous
- right semi Fredholm operator
- right semi-Fredholm operator
- right semihereditary ring
- right semilinear mapping
- right sentential form
- right serial ring
- rights expression language
- right shunt
- right side
- right-sided decomposition
- right-side limit
- right-side residue class
- right simple semigroup
- right singular ideal
- right singular point
- right singular semigroup
- right socle
- rights of children
- rights of employees
- rights offering
- Rights of Free Navigation on the Mississippi
- rights of safety production
- rights of sexual pleasure