- Swift part2
829 ：デフォルトの名無しさん[sage]：2014/07/17(木) 23:03:27.20 ID:o/1vn53B - 面倒だな。
extension String {
subscript (r: Range<Int>) -> String {
get {
let subStart = advance(self.startIndex, r.startIndex, self.endIndex)
let subEnd = advance(subStart, r.endIndex - r.startIndex, self.endIndex)
return self[Range(start: subStart, end: subEnd)]
}
}
}
let str : String = "Hello World!"
let str2 = str[Range(start: 1, end: 5)]
println("str2: \(str2)")
参考：http://stackoverflow.com/questions/24044851/how-do-you-use-string-substringwithrange-or-how-do-ranges-work-in-swift
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