本文介绍了CancellationToken的默认参数的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我有一些异步代码,想向其中添加 CancellationToken
。但是,在许多实现中不需要此实现,因此我想使用一个默认参数-也许 CancellationToken.None
。但是,
I have some async code that I would like to add a CancellationToken
to. However, there are many implementations where this is not needed so I would like to have a default parameter - perhaps CancellationToken.None
. However,
Task<x> DoStuff(...., CancellationToken ct = null)
收益率
和
Task<x> DoStuff(...., CancellationToken ct = CancellationToken.None)
有没有办法为<$ c提供默认值$ c> CancellationToken ?
推荐答案
事实证明,以下方法有效:
It turns out that the following works:
Task<x> DoStuff(...., CancellationToken ct = default(CancellationToken))
其中,,与 CancellationToken.None
解释相同:
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