这个奇怪的语法的意思是什么 [英] What is the meaning of this strange syntax

问题描述

今天我看到以下语法。谁能告诉我这是什么意思：

Today I saw the following syntax. Can anybody tell me the meaning of this:

System::ComponentModel::Container ^components; 

我在Visual C ++这段代码，我用了一个向导来创建服务后。

I got this code in Visual C++, after I used a wizard to create a service.

推荐答案

的 ^ 操作符（不与二进制XOR运算符混淆）是具体到C ++ / CLI。

The ^ operator (not to be confused with the binary XOR operator) is specific to C++/CLI.

它用于一个手柄申报.NET托管对象。

It is used to declare a handle to a .NET managed object.

句柄是对对象的引用，它不同于传统的C ++指针，因为它允许垃圾收集对引用对象正确地运行，从而不需要手动对象删除。

A handle is a reference to the object which differs from traditional C++ pointers in the fact that it allows Garbage Collection to function correctly for the referenced object, making manual object deletion unnecessary.

此语法取代托管C ++扩展的 __ gc 指针。

This syntax supersedes the managed C++ extensions' __gc pointers.

更多细节可以在这里找到： http://en.wikipedia.org/wiki/C%2B%2B/CLI

More details can be found here: http://en.wikipedia.org/wiki/C%2B%2B/CLI

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