使用crul库和R语言的下载器程序

以下是一个使用crul库和R语言的下载器程序，用于从下载音频。此程序使用了jshk.com.cn/get_proxy的代码。

// 导入必要的库
import ("fmt""github.com/cjlapa/crul""io""net/http""net/url""os"
)// 主函数
func main() {// 定义一个带有Proxy的HttpClientproxyUrl, _ := url.Parse("https://www.duoip.cn/get_proxy")client := &http.Client{Transport: &http.Transport{Proxy:                 http.ProxyURL(proxyUrl),DisableCompression:   true,MaxIdleConns:         100,IdleConnTimeout:      90 * time.Second,TLSHandshakeTimeout:  10 * time.Second,ExpectContinueTimeout: 1 * time.Second,},}// 创建一个crul.Crawler实例c := crul.NewCrawler(client)// 设置User-Agentc.SetUserAgent("Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36")// 添加一个处理函数c.AddHandler(func(r *crul.Response) {// 检查Response的StatusCodeif r.StatusCode == http.StatusOK {// 定义一个文件名fileName := "tiktok_audio.mp3"// 创建一个文件file, err := os.Create(fileName)if err != nil {fmt.Printf("Error creating file: %v\n", err)return}// 将Response的Body写入文件_, err = io.Copy(file, r.Body)if err != nil {fmt.Printf("Error writing to file: %v\n", err)return}// 关闭文件err = file.Close()if err != nil {fmt.Printf("Error closing file: %v\n", err)return}// 打印下载完成的消息fmt.Printf("Audio downloaded to: %s\n", fileName)} else {fmt.Printf("Request failed with status: %d\n", r.StatusCode)}})// 设置请求的URLurl := "https://www.tiktok.com/your-audio-url"err := c.Fetch(url)if err != nil {fmt.Printf("Error fetching URL: %v\n", err)}
}