在swift中创建JSON数组和JSON对象

import Foundation

// 创建一个包含Swift对象的数组
let array = ["apple", "banana", "orange"]

do {
    // 将数组转换为JSON数据
    let jsonData = try JSONSerialization.data(withJSONObject: array, options: [])

    // 将JSON数据转换为字符串
    if let jsonString = String(data: jsonData, encoding: .utf8) {
        print(jsonString)
    }
} catch {
    print("JSON serialization failed: \(error)")
}

import Foundation

// 创建一个包含键值对的Swift字典
let dictionary = ["name": "John", "age": 30, "city": "New York"]

do {
    // 将字典转换为JSON数据
    let jsonData = try JSONSerialization.data(withJSONObject: dictionary, options: [])

    // 将JSON数据转换为字符串
    if let jsonString = String(data: jsonData, encoding: .utf8) {
        print(jsonString)
    }
} catch {
    print("JSON serialization failed: \(error)")
}