Swift编码WhatsApp URL

import Foundation

func createWhatsAppURL(phoneNumber: String, message: String) -> URL? {
    var urlComponents = URLComponents()
    urlComponents.scheme = "https"
    urlComponents.host = "api.whatsapp.com"
    urlComponents.path = "/send"
    
    let phoneNumberItem = URLQueryItem(name: "phone", value: phoneNumber)
    let messageItem = URLQueryItem(name: "text", value: message)
    
    urlComponents.queryItems = [phoneNumberItem, messageItem]
    
    return urlComponents.url
}

let phoneNumber = "+1234567890"
let message = "Hello, World!"

if let url = createWhatsAppURL(phoneNumber: phoneNumber, message: message) {
    print(url.absoluteString)
} else {
    print("Failed to create WhatsApp URL.")
}