ios - 如何使用 NSRange 从字符串中提取特定句子？

Question

这是我的代码:

regex.enumerateMatchesInString(parsingMemo.string, options: NSMatchingOptions(rawValue: 0), range: NSMakeRange(0, parsingMemo.length), usingBlock: { (match: NSTextCheckingResult?,_, _) -> Void in
let trange = match!.rangeAtIndex(0)
let range = Range(start: trange.location, end: trange.length)
var insideString: String = parsingMemo.string.substringWithRange(NSMakeRange(trange.location,trange.length) 

代码给出了以下错误:

Cannot convert value of type 'NSRange' (aka '_NSRange') to expected argument type 'Range' (aka 'Range')

如何修复我的代码？

Answer 1

您需要将给定的 NSRange 转换为 Swift Range。像这样的东西应该有效:

let start = parsingMemo.string.characters.startIndex.advancedBy(trange.location)
let end = start.advancedBy(trange.length)

var insideString: String = parsingMemo.string.substringWithRange(start..<end)