<html><body><form action="/example/html5/demo_form.asp">网页：<input type="url" list="url_list" name="link" /><datalist id="url_list"> <option label="W3School" value="https://www.w3school.org.cn" /> <option label="Google" value="http://www.google.com" /> <option label="Microsoft" value="http://www.microsoft.com" /></datalist><input type="submit" /></form></body></html>