正则表达式替换问题

Question

请问在python3中如何正则表达式把字符串中
<!1!>safafdsf</!1!>
<!2!>safafdsf</!2!>中的数字部分替换成一个统一的字符串list

Answer 1

text = """
    <!1!>safafdsf</!1!>
    <!2!>safafdsf</!2!>
    """

reg = re.compile(r'(!\d+!)>')
xx = reg.sub('li>', text)

Answer 2

var text = `
    <!1!>safafdsf</!1!>
    <!2!>safafdsf</!2!>
   `
text.replace(/\!\d\!/g,"list");