Swift 2 - 在字符串中搜索并对数字求和

Question

我的旧代码是：

let comps = split(str, { $0 == "-" || $0 == " " }, maxSplit: Int.max, allowEmptySlices: false)

更新Swift 2后，我的XCode 7将其修复为：

let comps = split(str.characters, { $0 == "-" || $0 == " " }, maxSplit: Int.max, allowEmptySlices: false).map { String($0) }

但现在我遇到了错误：Cannot invoke 'map' with an argument list of type '((_) -> _)'

如何修复它。

Link to old answer on Swift

Answer 1

split()函数的参数顺序由于某种原因搞砸了。它应该是：

let comps = split(str.characters, maxSplit: Int.max, allowEmptySlices: false) {
    $0 == "-" || $0 == " "
}.map {
    String($0)
}