structUser:Codable{letid:Intletname:Stringletemail:String} 1. 2. 3. 4. 5. 在这里,我们使用了Codable协议,它结合了Encodable和Decodable,让我们可以方便地进行编码和解码操作。 JSON转Model的实现 接下来,我们需要创建一个方法,将JSON字符串解析为User模型: funcjsonToUser(jsonString:String)->User?{letdata...
if let jsonStr = JSONSerializer.serialize(model: student).toJSON() { print("simple json string: ", jsonStr) } if let prettifyJSON = JSONSerializer.serialize(model: student).toPrettifyJSON() { print("prettify json string: ", prettifyJSON) } if let dict = JSONSerializer.serialize(model: ...
\"b\",\"c\"]}"lettestJSON=JSON.init(parseJSON:testJSONString)// JSON转Model// 方式1varcategory=Category(data:testJSON)// 方式2varcategory=Category.fromJSON(data:testJSON)// 转换到JSONletjString=category.toJSON()
2]object.arrayStringOptional = ["a","b"]object.setInt = [1,2]object.dictAnyObject = ["key1":1,"key2":"stringValue"]object.nsNumber =2object.nsString ="nsStringValue"let jsonString=object.toJSONString()!
model代码如下 //为了将 JSON 字符串转化为 Beer 类型的实例,我们需要将 Beer 类型标记为 Codable。enumBeerStyle: String, Codable {caseipacasestoutcasekolsch }structBeer: Codable { let name: String let abv: Float let brewery: String let style: BeerStyle ...
@StringBuilder funcgreet(name:String)->String{"Hello""World"if!name.isEmpty{"to"name}}print(greet(name:"Swift Senpai"))// Expected output: "HelloWorldtoSwift Senpai" 这样修改以后,你应该会看到编译器开始抱怨: Closure containing control flow statement cannot be used with result builder 'StringBuild...
Swift’sAnytype can hold any type, butDictionaryandSetrequire keys that areHashable, soAnyis too general. Starting with Swift 3, the Swift standard library provides a new typeAnyHashable. Similar toAny, it acts as a supertype of allHashabletypes, so values ofString,Int, and other hashable ty...
case name(String) case num(Int) } 减少var属性 使用计算属性 使用计算属性可以减少多个变量同步带来的潜在 bug。 不推荐 class model { var data: Object? var loaded: Bool } model.data = Object() loaded = false 推荐 class model { var data: Object?
Although it may seem natural to model a string as a collection of characters, theStringtype behaves quite differently from collection types likeArray,Set, orDictionary. This has always been true, but with the addition of protocol extensions to Swift 2 these differences made it necessary to make...
[:] // 模型转json字符串 let json1 = xiaoMing.toJSONString(prettyPrint: true) ?? "" // json字符串转模型 guard let xiaoMing2 = JsonToModel.deserialize(json: json1) else { return } 解析完成的回调 class Model: SmartDecodable { var name: String = "" var age: Int = 0 var desc: St...