如何在Swift 4中编写嵌套字典

Question

所以我有这个json：

"transactions": [
        {
            "balance": "15000",
            "description": "Makan di indomaret",
            "date": "09-01-2019",
            "week": "1"
        },
        {
            "balance": "25000",
            "description": "Makan di alfamart",
            "date": "08-01-2019",
            "week": "1"
        }
    ]

我想用字典编写这个json结构。 这里的代码

var jsonData = [String : [[String : Any]]]() 

谢谢。

Answer 1

应该是

var jsonData = [[String : [[String : Any]]]()

因为键（“事务”）是字符串，并且其值（

[{
    "balance": "15000",
    "description": "Makan di indomaret",
    "date": "09-01-2019",
    "week": "1"
},
{
    "balance": "25000",
    "description": "Makan di alfamart",
    "date": "08-01-2019",
    "week": "1"
}]

是字符串数组：任意

Answer 2

然后，您可以循环制作一个字典，稍后将其追加到arrayDictionary

let array = [[String:Any]]()

for item in data {
 let dictionary = [String:Any]()
 dictionary["object1"] = item.id
 dictionary["object2"] = item.name
 dictionary["object3"] = item.address

 array.append(dictionary)
}