抓取网页内容

func getHtmlContent(u string, r string) []string {
	resp, err := http.Get(u)
	if err != nil {
		log.Println(err.Error())
		return nil
	}
	defer resp.Body.Close()

	if resp.StatusCode == http.StatusOK {
		c, err := ioutil.ReadAll(resp.Body)
		if err != nil {
			log.Println(err.Error())
			return nil
		}

		return regexp.MustCompile(`href=".*"`).FindAllString(string(c), -1)
	} else {
		log.Println("Error HTML Code: ", resp.StatusCode)
		return nil
	}
}