题目详情

(  )多态是指操作(方法)具有相同的名称、且在不同的上下文中所代表的含义不同。

  • A.参数
  • B.包含
  • C.过载
  • D.强制

正确答案及解析

正确答案
C
解析

参数多态:应用广泛、最纯的多态。

包含多态:同样的操作可用于一个类型及其子类型。包含多态一般需要进行运行时的类型检查。

强制多态:编译程序通过语义操作,把操作对象的类型强行加以变换,以符合函数或操作符的要求。

过载多态:同一个名(操作符﹑函数名)在不同的上下文中有不同的类型。

本题应该选择C选项过载多态。

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