举例说明如何使用纯html怎么实现下拉提示的功能？
- datalist标签
<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <title>document</title></head><body> <label for="favorite_team">Favorite Team:</label> <!-- 注意input的list属性与datalist的id属性进行绑定 --> <input type="text" name="team" id="favorite_team" list="team_list" autocomplete="off"> <datalist id="team_list"> <!-- 指定了value值之后，value和innerHTML类似于标题与副标题之间的关系，选中后input的值是value --> <option value="A">Aus Tigers</option> <option value="B">Detroit Lions</option> <option value="C">Detroit Pistons</option> <option value="D">Detroit Red Wings</option> <option value="E">Detroit Tigers</option> </datalist></datalist></body></html>
