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
- electric actuator
- electric actuators
- electrical
- electrical accident
- electrical activity of myocardial cells
- electrical activity of self disciplined cardiac muscle cells
- electrical aging
- electrical analogy
- electrical and electromagnetic methods in underground mine
- electrical apparatus for explosive atmospheres
- electrical appliances
- electrical arc wire spraying
- electrical backup hydraulic servo actuator
- electrical big data
- electrical breakdown of PN junction
- electrical breakdown of pn junction
- electrical calibration sensitivity
- electrical capacitance tomography
- electrical capacitance tomography technology
- electrical carbonaceous
- electrical characteristic of liquid crystal
- electrical characteristics
- electrical classification equipment
- electrical communication
- electrical conduction of solid