Arrays Swift:如何从数组中的struct访问特定数据?
} } } 在此代码行“text\u here?.text=data[indexPath.row].properties.timeseries.description”。我不能再详细说明了;“text\u here?.text=data[indexath.row].properties.timeseries.data.instant.details.air\u sea\u level.description”Arrays Swift:如何从数组中的struct访问特定数据?,arrays,json,swift,struct,tableview,Arrays,Json,Swift,Struct,Tableview,} } } 在此代码行“text\u here?.text=data[indexPath.row].properties.timeseries.description”。我不能再详细说明了;“text\u here?.text=data[indexath.row].properties.timeseries.data.instant.details.air\u sea\u level.description” 所以我的问题是如何处理数组中声明的数据,以便指定其背后的数据?如上面的代码示例所示。首
所以我的问题是如何处理数组中声明的数据,以便指定其背后的数据?如上面的代码示例所示。首先尝试订阅timeseries数组
struct Data: Decodable {
let instant: Instant
// let next_1_hours: Next_1_hours
//let next_6_hours: Next_6_hours
//let next_12_hours: Next_12_hours
}
struct Instant: Decodable {
let details: Details
}
// MARK: - Details
struct Details: Decodable {
let air_pressure_at_sea_level: Double
let air_temperature: Double
let cloud_area_fraction: Double?
let cloud_area_fraction_high: Double?
let cloud_area_fraction_low: Double?
let cloud_area_fraction_medium: Double?
let dew_point_temperature: Double?
let fog_area_fraction: Double?
let relative_humidity: Double
let ultraviolet_index_clear_sky: Double?
let wind_from_direction: Double
let wind_speed: Double
}
从
这就是声明结构、初始化结构和访问结构属性的方法。可以将相同类型的结构存储在中,然后使用索引访问元素
struct Resolution {
var width = 0
var height = 0
}
let someResolution = Resolution()
print("The width of someResolution is \(someResolution.width)")
// Prints "The width of someResolution is 0"
谢谢你,我在找这样简单的东西。成功了!
struct Timeseries: Decodable {
let time: String
let data: Data
struct Data: Decodable {
let instant: Instant
// let next_1_hours: Next_1_hours
//let next_6_hours: Next_6_hours
//let next_12_hours: Next_12_hours
}
struct Instant: Decodable {
let details: Details
}
// MARK: - Details
struct Details: Decodable {
let air_pressure_at_sea_level: Double
let air_temperature: Double
let cloud_area_fraction: Double?
let cloud_area_fraction_high: Double?
let cloud_area_fraction_low: Double?
let cloud_area_fraction_medium: Double?
let dew_point_temperature: Double?
let fog_area_fraction: Double?
let relative_humidity: Double
let ultraviolet_index_clear_sky: Double?
let wind_from_direction: Double
let wind_speed: Double
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = UITableViewCell(style: .default, reuseIdentifier: nil)
text_here?.text = data[indexPath.row].properties.timeseries[*index*]..
return cell
struct Resolution {
var width = 0
var height = 0
}
let someResolution = Resolution()
print("The width of someResolution is \(someResolution.width)")
// Prints "The width of someResolution is 0"
let resolutions = [Resolution]()
resolutions.append(someResolution)
let myResolutionWidth = resolutions[0].width