问题：
解决：
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import Foundation func toJson(obj : Any) -> String?{ do { let aa = toObj(obj:obj) let jsonData = try JSONSerialization.data(withJSONObject: aa, options: []) let jsonString = String.init(data: jsonData, encoding: .utf8) return jsonString } catch { print(error) return nil } } func toObj(obj : Any) -> Any{ if let a = obj as? [Any] { var a2 = [Any]() for e in a { let d = toObj(obj: e) a2.append(d) } return a2 }else if obj is Int || obj is String || obj is Bool || obj is Float || obj is Double || obj is NSNull { return obj } else { let dic = toDictionary(obj: obj); if dic.count > 0 { return dic }else {////optional none return obj } } } func toDictionary(obj : Any) -> [String: Any] { var dictionary = [String: Any]() let otherSelf = Mirror(reflecting: obj) for child in otherSelf.children { guard let key = child.label else { continue } let v = child.value dictionary[key] = toObj(obj:v) } return dictionary } extension Dictionary { func floatValue(_ name:Dictionary.Key) ->Float?{ var ret : Float? = nil if let n = self[name] as? NSNumber { ret = n.floatValue }else if let f = self[name] as? Float { ret = f } return ret } } |
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