Swift 中的有序映射

Swift 中的有序映射

swift
var orderedMap = [(key: String, value: Int)]()
// 添加元素
orderedMap.append((key: "Apple", value: 10))
orderedMap.append((key: "Banana", value: 5))
orderedMap.append((key: "Orange", value: 7))
// 按照键的顺序进行排序
orderedMap.sort { $0.key < $1.key }
// 遍历有序映射
for (key, value) in orderedMap {
    print("\(key): \(value)")
}

swift
var orderedMap = [String: Int]()
// 添加元素
orderedMap["Apple"] = 10
orderedMap["Banana"] = 5
orderedMap["Orange"] = 7
// 按照键的顺序进行排序
let sortedKeys = orderedMap.keys.sorted()
for key in sortedKeys {
    if let value = orderedMap[key] {
        print("\(key): \(value)")
    }
}