如何在swift 4中将JSON字典转换为字符串值

import Foundation

func convertJSONToString(json: [String: Any]) -> String? {
    do {
        let jsonData = try JSONSerialization.data(withJSONObject: json, options: [])
        let jsonString = String(data: jsonData, encoding: .utf8)
        return jsonString
    } catch {
        print("Error converting JSON to string: \(error)")
        return nil
    }
}

// 示例用法
let jsonDictionary = ["name": "John", "age": 30, "city": "New York"]
if let jsonString = convertJSONToString(json: jsonDictionary) {
    print("JSON String: \(jsonString)")
} else {
    print("Failed to convert JSON to string")
}