在Swift中将一本字典与另一本字典相乘 [英] Multiply one dictionary by another in Swift

问题描述

目前，我有一个嵌套的字典声明为:

Currently, I have a nested dictionary declared as :

let VitamineARetinol = "VitamineARetinol"
let VitamineABetacarotene = "VitamineABetacarotene"
let VitamineC = "VitamineC"
let VitamineD = "VitamineD"
let Calories = "Calories"

typealias ListOfAliment = [String: [String: Double]]

let Data: ListOfAliment = [
    "Orange": [VitamineARetinol: 0.5, VitamineC: 0.3, VitamineD: 0.98, Calories: 160],
    "Pomme": [VitamineARetinol: 0.2, VitamineC: 0.2, VitamineD: 0.38, Calories: 120],
    "Poire": [VitamineARetinol: 0.1, VitamineC: 0.7, VitamineD: 0.58, Calories: 140],
    "Laitue": [VitamineARetinol: 0.3, VitamineC: 0.1, VitamineD: 0.92, Calories: 105],
    "Banane": [VitamineARetinol: 0.7, VitamineC: 0.01, VitamineD: 0.63, Calories: 122],
]

我需要在以下字典中将每个值除以其对应的值:

And I need to divide each value with its corresponding value in the following dictionary:

let reference: ListOfAliment = [
    "reference": [VitamineARetinol: 0.2, VitamineC: 0.1, VitamineD: 0.4],
]

最后，我应该得到一个食物字典，其中每种食物的所有值都被字典参考中的相应值除以拜托，有人可以帮我吗！

In the end, I should get a food dictionary where all the values ​​of each food have been divided by their corresponding value in the dictionary reference Please, could someone help me!

推荐答案

在您的上一个问题中给出我的答案只需将值数组映射到新数组

Given my answer in your previous question you can simply map your array of values into a new array

let adjustedData = array
    .map { Aliment(name: $0.name, 
                   vitamineARetinol: $0.vitamineARetinol / 0.2, 
                   vitaminC: $0.vitaminC / 0.1, 
                   vitaminD: $0.vitaminD / 0.4, 
                   calories: $0.calories)}

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