ScrapeKit 和 Swift 编写程序

import ScrapeKit
​
class PeopleImageCrawler: NSObject, ScrapeKit.Crawler {
    let url: URL
    let proxyUrl: URL
​
    init(url: URL, proxyUrl: URL) {
        self.url = url
        self.proxyUrl = proxyUrl
    }
​
    func crawl() -> [String: Any] {
        var images = [String]()
        
        let html = try? String(contentsOf: url, encoding: .utf8)
        let doc = try? HTML(html: html, encoding: .utf8)
        
        if let imgElems = doc?.css("img") {
            for imgElem in imgElems {
                if let imgUrl = imgElem.attr("data-src") {
                    images.append(imgUrl)
                }
            }
        }
        
        return ["images": images]
    }
}
​
let targetUrl = URL(string: "https://www.people.com.cn")!
let proxyUrl = URL(string: "https://www.duoip.cn/get_proxy")!
​
let crawler = PeopleImageCrawler(url: targetUrl, proxyUrl: proxyUrl)
let result = crawler.crawl()
​
print(result)