英文:
passing array or slice into variable args function in golang
问题
filepath.Join方法接受一个...string参数，但我有一个[]string，我想传入。当我尝试这样做时，我会得到以下错误：
无法将append(elems, spadePath)（类型为[]string）作为filepath.Join的参数中的string类型使用
有没有一种方法可以在[]type和...type之间进行转换？
英文:
filepath.Join method takes in a ...string argument but I have a []string that I would like pass in. When I attempt to do this I get the following error:
cannot use append(elems, spadePath) (type []string) as type string in argument to filepath.Join
Is there a way to convert between a []type and a ...type?
答案1
得分: 14
发现一种方法可以通过在作为参数传递时，在切片后面添加...来实现这一点。
例如，我最初尝试调用以下代码，但出现了错误：
filepath.Join(append(elems, basePath))
但是我通过在参数中添加...进行了修正：
filepath.Join(append(elems, basePath)...)
英文:
Found a way to do this by appending the ... to your slice when being passed in as an argument.
For example, I was originally trying to call make the following call which was yielding the error:
filepath.Join(append(elems, basePath))
but I corrected it by appending ... in the argument:
filepath.Join(append(elems, basePath)...)
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