如何使用Swift 3将返回的数组转换为字典

import Foundation

func arrayToDictionary(array: [String]) -> [String: Int] {
    let initialDictionary: [String: Int] = [:]
    let dictionary = array.reduce(into: initialDictionary) { (result, element) in
        result[element] = element.count
    }
    return dictionary
}

let array = ["apple", "banana", "orange"]
let dictionary = arrayToDictionary(array: array)
print(dictionary)

["apple": 5, "banana": 6, "orange": 6]