将数组值作为函数 swift 的参数传递

Question

我是 swift 新手。我尝试学习许多教程，但仍然无法找到解决方案。 我想将存储在数组中的值传递给函数。

let trackList = ["AC","BB"]    

for trackId in trackList{

 let ind = trackList.index(of: trackId)
 let index = trackList.startIndex.distance(to: ind!)
 let num = Int(String(describing: ind))
 let track = String(trackId)

 addDiaryList(track:String) //i keep getting error here saying: Cannot convert value of type 'String.Type' to expected argument type 'String'

}

func addDiaryList(track:String) {
}

Answer 1

这很简单，函数调用是错误的。应该是

addDiaryList(track:track!)

第一个track代表函数中的参数名称，第二个代表你在上面分配的两行变量。

但我认为你在这里做了很多无用的调用，它可能是：

let trackList = ["AC","BB"]

func addDiaryList(track:String) {
}

for trackId in trackList{
    addDiaryList(track: trackId)
}