params 具有默认参数值的参数

问题描述

我见过 params 参数的次数比我说的要多，而且总是在不考虑其含义的情况下将其删除.现在我已经了解了它的目的.我刚刚了解到的是 params 参数必须是参数列表中的最后一个.但这是我对指定默认值的参数的了解.示例:

I've seen the params parameter more times than I can say and always removed it without thinking about it's meaning. Now I've learned its purpose. What I just learned is that the params parameter must be the last in the parameter list. But this is what I learned about the parameters that have a default value specified. Example:

MyMethod(string Name, int blah=0).

所以问题是如果我需要在需要使用 params 的同时指定一个默认值，可以这样做吗?如果是这样，哪个必须最后声明?示例:

So the question is if I need to specify a default value as above while needing to use params, can this be done? If so, which must be declared last? Example:

MyMethod(int blah=0, params string[] variableData).

再次感谢您的帮助.詹姆斯

Thanks for your help again. James

推荐答案

你的例子是正确的:

public void TestMethod(string name = "asdasd", params int[] items)
{
}

params 必须在最后，无论之前使用什么参数.

params has to be last, no matter what parameter are used before that.

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