C ++中的“ref”和“sealed”关键字是什么？ [英] What are the 'ref' and 'sealed' keywords in C++?

问题描述

我刚刚看到一些（大概）C ++代码运行两个关键字我不知道（我假设关键字，但因为我没有上下文，他们可能是简单的 #define ）。

I've just seen some (presumably) C++ code which sports two "keywords" unknown to me (I'm assuming keywords but, since I have no context, they may be simple #define things).

它们似乎并不出现在C ++ 11标准中，至少我有草案，一个相当晚的草稿，我不能想象他们只是在最后一分钟掉入标准。它们是 ref 和 sealed 。

They also don't seem to appear in the C++11 standard, at least the draft I have but, since that's a pretty late draft, I can't imagine them being just dropped into the standard at the last minute. They are ref and sealed.

发现它们是如下：

public ref class DevIface sealed {
    private:
        int currOffset;
public:
        DevIface (int initOffset);
        : : :

有没有人知道这些关键字是什么，要实现？

Does anyone know what these keywords are, and what they're meant to achieve?

推荐答案

这是C ++ / CLI。

This is C++/CLI.

ref class 是托管类型。

sealed 表示类不能继承

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