swift - 如何在 iOS Swift 中更新字典的值？

Question

var request: [String: Any] = [

    "Token": "Token",
    "Request": [
        "CityID": "CityID",
        "Filters": [
            "IsRecommendedOnly": "0",
            "IsShowRooms": "0"
        ]
    ]
]
//
print(request)

控制台输出:

["Token": "Token", "Request": ["CityID": "CityID", "Filters": ["IsRecommendedOnly": "0", "IsShowRooms": "0"]]]

在这里，我想将 "IsShowRooms" 键的值从值 "0" 更新为值 "1"，我尝试了不同的方法步骤，但我无法这样做，有人可以帮我解决这个问题吗？

Answer 1

您可以通过将 Any 类型转换为其类型并将其值存储回来来获取值

if var requestVal = request["Request"] as? [String: Any], var filters = requestVal["Filters"] as? [String: String] {
    filters["IsShowRooms"] = "1"
    requestVal["Filters"] = filters
    request["Request"] = requestVal
}

输出

["Token": "Token", "Request": ["CityID": "CityID", "Filters": ["IsRecommendedOnly": "0", "IsShowRooms": "1"]]]

或

不是在字典中存储值，而是创建一个结构。更新它的属性会更容易