subclass英语原文释义、词形变化、词源和词汇关系

英文释义

名词 n.

A secondary class within a main class.

— 1959, "Steam's Finest Hour" edited by David P. Morgan, Kalmbach Publishing Co., referring to the R-1 Mountain class loco. These 4-8-2's, of which B&M eventually purchased 18 in various subclasses, could almost haul the tonnage of a T and more than made up for the slight deficiency by raising the maximum speed limit from 45 to 70 miles per hour, thanks to 73-inch drivers.
A rank directly below class.
An object class derived from another class (its superclass) from which it inherits a base set of properties and methods.

动词 v.

(in object-oriented programming) To create a subclass of (some class). transitive

— I subclassed the Button class to create a more specialised FancyButton class for my user interface.
To cause (an object) to act as an instance of a subclass (by creating the desired subclass and instantiating an object of this subclass). transitive

— Since Windows knows about these events, your application should be able to know about them as well. In order to accomplish this, subclass the window of a form or control, intercepting all of its events.

词形变化

subclasses plural sub-class alternative subclasses present,singular,third-person subclassing participle,present subclassed participle,past subclassed past sub-class alternative

词汇关系

近义词

subset child class derived class heir class

反义词

superclass superset unsubclass

上位词

class

衍生词

intersubclass intrasubclass subclasser subclassable unsubclass

词源

词源 1

Etymology tree
Proto-Indo-European *upó
Proto-Italic *supo
Latin sub
Latin sub-der.
English sub-
Proto-Indo-European *kelh₁-der.
Proto-Italic *klāssis
Latin classisder.
Middle French classebor.
English class
English subclass
From sub- + class.

词源 2

Etymology tree
Proto-Indo-European *upó
Proto-Italic *supo
Latin sub
Latin sub-der.
English sub-
Proto-Indo-European *kelh₁-der.
Proto-Italic *klāssis
Latin classisder.
Middle French classebor.
English class
English subclass
From sub- + class.