如何将字符串输入用作数组？ Swift

Question

我试图将一个数组的结果作为一个字符串，并将这个结果用作一个已经存在的数组的名称。

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"
                ]

所以如果Jeep_Model returns CJ，那么我希望能够将CJ作为一个数组来调用。这个问题有道理吗？如果有的话，这可能吗？

Jeep_Model returns "CJ", 然后我想读取数组 CJ.count 或 CJ[2] 等等...

Answer 1

变量名称在编译时计算，您不能在运行时将该名称视为字符串值。

你需要一个字典，键是Jeep_Model返回的模型，值是关联的数组

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 returns CJ 你得到第三个 CJ 模型

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

如何将字符串输入用作数组？ Swift

How to use a string input as an array? Swift

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string

return

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swift