ios - 如何从给定图像访问 Json 数据

Question

阵列产品型号detail models

我的代码:

productDetailsNameLabel.text = products[indexPath.section].arr_details?[indexPath.item].productname

获取错误信息:

Type Arr_Details has no subscripts member

Answer 1

arr_details 没有任何下标成员，因此您无法访问它。请引用以下示例:

class Abc: NSObject {
   var arr: [Xyz] = []
   override init() {
       for i in 1...5 {
           arr.append(Xyz(number: i))
       }
   }
}

class Xyz: NSObject {
    var number: Int
    init(number: Int) {
        self.number = number
    }
}
// Use of this class
var arrAbc: [Abc] = []
for _ in 0...5 {
    arrAbc.append(Abc())
}
yourLabel.text = "\(arrAbc[0].arr[0].number)"