委托{}和（输入参数）=> {}之间的区别

Question

I have a few methods like this

public void DoSomething(Action<int> action) { ... }

In some cases I do not use the parameters passed into action. Are there any differences I should be aware of between calling it like this

DoSomething(delegate { ... });

or

DoSomething(_ => { ... });

Answer 1

No, they're equivalent. Personally I prefer delegate {} as it's obvious that you don't care about the parameters (to the extent of not even naming them), and you don't need to adapt the code based on the delegate signature - but both are fine.