将列表加入一个字符串

Question

如何删除字符串的第一个单词？

  

0.91％ABC DEF
  0.922％ABC DEF GHI

     

输出：ABC DEF / ABC DEF GHI

我试过

let test = str.split(separator: " ")[1...]
print(test)
print(test.joined(separator: " "))

这给了我：

["ABC", "DEF"]
JoinedSequence<ArraySlice<Substring>>(_base: ArraySlice(["ABC", "DEF"]), _separator: ContiguousArray([" "]))

如何将JoinedSequence打印为字符串？

Answer 1

试试这个：

let str = "0.91% ABC DEF"
var parts = str.components(separatedBy: " ").dropFirst()

print(parts.joined(separator: " "))

打印哪些：

  

“ABC DEF \ n”

Answer 2

给定一个字符串

if let index = text.range(of: " ")?.upperBound {
    let result = text.substring(from: index)
    print(result)
}

你可以在第一个空格后搜索'index'

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