.NET:字典值是通过引用还是值存储的 [英] .NET: Are Dictionary values stored by reference or value

问题描述

我有一个Dictionary<int, Product>.如果将同一个产品添加到多个密钥中，那么是否为每个密钥存储了该对象的新实例?还是只是对原始对象的引用?

I have a Dictionary<int, Product>. If the same Product is added to more than one key is an new instance of that object stored for each key? Or just a reference to the original object?

此收藏非常大，每个产品都有1-10个钥匙.我主要关心的是内存分配.

This collection is very large and each product will have between 1-10 Keys to it. My primary concern is memory allocation.

推荐答案

如果Product是引用类型(类而不是struct)，则仅存储引用.

If Product is a reference type (class and not struct), only a reference will be stored.

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