Question

我试图将一个数组的结果作为字符串，并将此结果用作已存在数组的名称。

var Jeep_Model: [String] = ["CJ",
                        "DJ",
                        "SJ",
                        "XJ",
                        "Comanche",
                        "YJ",
                        "TJ",
                        "JK"
                        //"Grand Cherokee",
                        //"Renegade",
                        //"Compass",
                        //"Commander",
                        //"Liberty",
                        //"Patriot",
                        //"Wagoneer"
                        ]

var CJ: [String] = ["CJ-1",
                "CJ-2",
                "CJ-2A",
                "CJ-V35",
                "CJ-4",
                "CJ-4M",
                "CJ-4MA",
                "CJ-3B",
                "CJ-5: Tuxedo Park Mark III",
                "CJ-5: Camper",
                "CJ-5: 462",
                "CJ-5: Renegade I",
                "CJ-5: Renegade II",
                "CJ-5: Super Jeep",
                "CJ-5: Golden Eagle",
                "CJ-5: Golden Eagle California Edition",
                "CJ-5: Golden Hawk",
                "CJ-5: Silver Anniversary",
                "CJ-6",
                "CJ-3B Long",
                "CJ-5A",
                "CJ-6A",
                "CJ-7",
                "CJ-5",
                "CJ-8: Scrambler",
                "CJ-10"
                ]

因此，如果Jeep_Model返回CJ，那么我希望能够将CJ称为数组。这个问题是否有意义，如果是这样，这甚至可能吗？

Jeep_Model返回＆＃34; CJ＆＃34;，然后我想读取数组CJ.count或CJ [2]等等......

Answer 1

在编译时评估变量名称，您无法在运行时将名称视为字符串值。

你需要一个字典，关键是从Jeep_Model返回的模型，该值是相关的数组。

对象缩短了一点

let Jeep_Model = ["CJ", "DJ", "SJ"]

let allModels  = ["CJ" : ["CJ-1", "CJ-2", "CJ-2A"], "DJ" : ["DJ... "], "SJ" : ["SJ... "]]

现在，如果Jeep_Model返回CJ，您将获得第三个带有

的CJ模型

let model = allModels["CJ"]![2] // -> "CJ-2A"

如何使用字符串输入作为数组？迅速

1 个答案: