您有JSON响应，***为Array而不是dictionary.因此，您需要将其强制转换为[[String:Any]]而不是[String: Any].

You have JSON response with Top level as Array not dictionary. So you need to cast it to [[String:Any]] instead of [String: Any].

现在，如果要将类型为[Int:Any]的Array响应转换为Dictionary，则需要遍历数组并从中创建字典.

Now if you want to convert this Array response to Dictionary with type [Int:Any] then you need to loop through the array and make dictionary from it.

do {
     let array = try JSONSerialization.jsonObject(with: data, options: []) as? [[String: Any]] ?? []
     var dictionary = [Int:Any]()
     //Loop through array and set object in dictionary
     for (index,item) in array.enumerated() {
         let uniqueID = index //Or generate uniqued Int id 
         dictionary[uniqueID] = item
     }
}
catch {}