用python写一个程序，要求如下：In the code cell below, complete function list2table take the parameter s which is a string of HTML as input and return a string. list2table extracts the data from all ordered lists in s and converts each of them to a table. The data table in each item is seperated by comma.

好的，以下是代码实现：

from bs4 import BeautifulSoup

def list2table(s):
    soup = BeautifulSoup(s, 'html.parser')
    ordered_lists = soup.find_all('ol')
    result = ''
    
    for ordered_list in ordered_lists:
        items = ordered_list.find_all('li')
        result += '<table>\n'
        for item in items:
            result += '<tr><td>' + '</td><td>'.join(item.text.split(',')) + '</td></tr>\n'
        result += '</table>\n'
    
    return result

使用BeautifulSoup库解析HTML代码，找到所有有序列表（ordered list）的标签，然后遍历每一个列表中的项（item），将其中的文本以逗号为分隔符分割成多个单元格，再将它们包装在HTML的`<tr>`和`<td>`标签中形成表格。最后将所有的表格串联起来返回即可。