import Foundation
for i in 1 ... n {
let entry = readLine()!.characters.split(" ").map(String.init)
let name = entry[0]
let phone = Int(entry[1])!
phoneBook[name] = phone``
}
地圖(String.init)//有人可以解釋這片code`的swift爲什麼characters.split用於?爲什麼是用於