Arrays 按字符串值访问数组

我有两种类型的阵列：一种用于存储类别名称：

struct Category {
    var title : String
    var dataArrayName : String
}

var Categories = [
    Category(title: "First Title", dataArrayName: "firstDataArray"),
    Category(title: "Second Title", dataArrayName: "secondDataArray")
]

另一个用于存储类别数据：

var firstDataArray = [1, 2, 3, 4, 5] // Data Array 1
var secondDataArray = [6, 7, 8, 9, 10] // Data Array 2

然后，在tableView中选择Rowat indexPath，我想通过

dataArrayName

从

Categories

访问

firstDataArray

（将数据数组推送到另一个视图控制器）

---

我通过行

Categories[indexath.row].dataArrayName

获得了

dataArrayName

的值，但我不知道如何访问数组，因为我得到了一个字符串结果。

我认为可以用数据[Int]设置一个“dataArrayName”。因为，当您在类别之前设置数组数据时，您可以如下方式访问此变量：

struct Category {
    var title : String
    var dataArrayName : [Int]
}

var firstDataArray = [1, 2, 3, 4, 5] // Data Array 1
var secondDataArray = [6, 7, 8, 9, 10] // Data Array 2

var categories = [
    Category(title: "First Title", dataArrayName: firstDataArray),
    Category(title: "Second Title", dataArrayName: secondDataArray)
]

struct Category {
    var title : String
    var dataArray : [Int]
}

var firstDataArray = [1, 2, 3, 4, 5] // Data Array 1
var secondDataArray = [6, 7, 8, 9, 10] // Data Array 2

var categories = [
    Category(title: "First Title", dataArray: firstDataArray),
    Category(title: "Second Title", dataArray: secondDataArray)
]

---

我认为您可以使用数据[Int]设置一个“dataArrayName”。因为，当您在类别之前设置数组数据时，您可以如下方式访问此变量：

struct Category {
    var title : String
    var dataArrayName : [Int]
}

var firstDataArray = [1, 2, 3, 4, 5] // Data Array 1
var secondDataArray = [6, 7, 8, 9, 10] // Data Array 2

var categories = [
    Category(title: "First Title", dataArrayName: firstDataArray),
    Category(title: "Second Title", dataArrayName: secondDataArray)
]

struct Category {
    var title : String
    var dataArray : [Int]
}

var firstDataArray = [1, 2, 3, 4, 5] // Data Array 1
var secondDataArray = [6, 7, 8, 9, 10] // Data Array 2

var categories = [
    Category(title: "First Title", dataArray: firstDataArray),
    Category(title: "Second Title", dataArray: secondDataArray)
]

---

您可能应该访问arrayData，而不是通过名称，这在编程中是非常糟糕的做法。而不是使用

数组的实例，如下所示：

struct Category {
    var title : String
    var dataArrayName : [Int]
}

var firstDataArray = [1, 2, 3, 4, 5] // Data Array 1
var secondDataArray = [6, 7, 8, 9, 10] // Data Array 2

var categories = [
    Category(title: "First Title", dataArrayName: firstDataArray),
    Category(title: "Second Title", dataArrayName: secondDataArray)
]

struct Category {
    var title : String
    var dataArray : [Int]
}

var firstDataArray = [1, 2, 3, 4, 5] // Data Array 1
var secondDataArray = [6, 7, 8, 9, 10] // Data Array 2

var categories = [
    Category(title: "First Title", dataArray: firstDataArray),
    Category(title: "Second Title", dataArray: secondDataArray)
]

最后访问arrayData：

print(categories[indexPath.row].dataArray)

您可能应该访问arrayData，而不是通过名称，这在编程中是非常糟糕的做法。而不是使用
数组的实例，如下所示：

struct Category {
    var title : String
    var dataArrayName : [Int]
}

var firstDataArray = [1, 2, 3, 4, 5] // Data Array 1
var secondDataArray = [6, 7, 8, 9, 10] // Data Array 2

var categories = [
    Category(title: "First Title", dataArrayName: firstDataArray),
    Category(title: "Second Title", dataArrayName: secondDataArray)
]

struct Category {
    var title : String
    var dataArray : [Int]
}

var firstDataArray = [1, 2, 3, 4, 5] // Data Array 1
var secondDataArray = [6, 7, 8, 9, 10] // Data Array 2

var categories = [
    Category(title: "First Title", dataArray: firstDataArray),
    Category(title: "Second Title", dataArray: secondDataArray)
]

最后访问arrayData：

print(categories[indexPath.row].dataArray)