用Swift 3 XCode 8解析JSON

import Foundation

// 假设有以下JSON数据
let jsonString = """
{
    "name": "John",
    "age": 30,
    "isStudent": true,
    "hobbies": ["reading", "coding", "gaming"],
    "address": {
        "street": "123 Main St",
        "city": "New York"
    }
}
"""

// 将JSON字符串转换为Data类型
guard let jsonData = jsonString.data(using: .utf8) else {
    print("Failed to convert JSON string to data")
    return
}

do {
    // 解析JSON数据
    guard let jsonObject = try JSONSerialization.jsonObject(with: jsonData, options: []) as? [String: Any] else {
        print("Failed to parse JSON data")
        return
    }
    
    // 从解析后的JSON对象中获取数据
    if let name = jsonObject["name"] as? String {
        print("Name: \(name)")
    }
    
    if let age = jsonObject["age"] as? Int {
        print("Age: \(age)")
    }
    
    if let isStudent = jsonObject["isStudent"] as? Bool {
        print("Is Student: \(isStudent)")
    }
    
    if let hobbies = jsonObject["hobbies"] as? [String] {
        print("Hobbies: \(hobbies)")
    }
    
    if let address = jsonObject["address"] as? [String: String] {
        if let street = address["street"], let city = address["city"] {
            print("Address: \(street), \(city)")
        }
    }
} catch {
    print("Error while parsing JSON: \(error)")
}