方法声明中三个点的含义是什么？ [英] What is the meaning of the three dots in a method declaration?

问题描述

可能重复：

Java，3个参数点

public static void getImages(String... folders) throws IOException{

}

在上面的 getImages（）方法中，为什么有三个点。这是什么意思？我搜索谷歌但找不到任何东西。

In the above getImages() method, why there is three dots. What is it mean? I searched google but couldn't find anything.

推荐答案

是的，如果你不知道标点符号很难搜索技术术语。在这种情况下，它是 varargs 。 这里是一个很好的链接来解释它。基本上，调用者可以根据需要添加任意数量的参数，并且该方法将它们视为该长度的数组。

Yeah, punctuation is hard to search for if you don't know the technical term. In this case, it is varargs. Here is a nice link to explain it. Basically, the caller can add as many arguments as desired, and the method sees them arriving as an array of that length.

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