从iOS Swift中的url解析xml

import Foundation

class XMLParserDelegate: NSObject, XMLParserDelegate {
    var currentElement: String = ""
    var currentValue: String = ""
    
    func parseXML(url: URL) {
        if let parser = XMLParser(contentsOf: url) {
            parser.delegate = self
            parser.parse()
        }
    }
    
    // 开始解析XML元素
    func parser(_ parser: XMLParser, didStartElement elementName: String, namespaceURI: String?, qualifiedName qName: String?, attributes attributeDict: [String : String] = [:]) {
        currentElement = elementName
        currentValue = ""
    }
    
    // 解析XML元素内容
    func parser(_ parser: XMLParser, foundCharacters string: String) {
        currentValue += string
    }
    
    // 结束解析XML元素
    func parser(_ parser: XMLParser, didEndElement elementName: String, namespaceURI: String?, qualifiedName qName: String?) {
        if elementName == "title" {
            print("Title: \(currentValue)")
        } else if elementName == "link" {
            print("Link: \(currentValue)")
        }
    }
    
    // 解析XML出错
    func parser(_ parser: XMLParser, parseErrorOccurred parseError: Error) {
        print("XML parsing error: \(parseError.localizedDescription)")
    }
}

// 使用示例
let url = URL(string: "https://example.com/data.xml")!
let xmlParserDelegate = XMLParserDelegate()
xmlParserDelegate.parseXML(url: url)