ki.label = ki.label为null，这不适用于键盘

Question

ki.label = ki.label为null这不起作用键盘如何设置ki.label = ???帮我ki.label = this.label无法正常工作

let yourDictionary = [Int: Any]() // or [String: Any]()
let keys = yourDictionary.keys
let sortedKeys = Array(keys).sorted(by: { $0 > $1 }) // highest will be the first
let highestKey = sortedKeys[0]