静态类型语言里，能否设计一个基类，限制子类字段类型？ - V2EX

静态类型语言里，能否设计一个基类，限制子类字段类型？ - V2EX

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这是一个创建于 3984 天前的主题，其中的信息可能已经有所发展或是发生改变。

比如基类叫A，我希望子类字段类型只能是Int，String，A，List[Int]，List[String]，或者List[A]

4 条回复 2014-11-16 23:05:44 +08:00

1

virusdefender

2014-11-16 22:21:41 +08:00 via Android

这个直接继承原来的类。在每次添加元素的时候判断就行了吧

2

SoloCompany

2014-11-16 22:27:24 +08:00

Java算不算静态类型？

3

ChiangDi

2014-11-16 22:32:30 +08:00

好像 JAVA 和 C++ 都不能。

4

arbipher

2014-11-16 23:05:44 +08:00

LZ说下这个设计的原因？要解决什么问题啊？

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