简单的解决方案:
>>> re.findall("(100%|[0-9][0-9]%|[0-9]%)","89%")['89%']更漂亮的解决方案:
>>> re.findall("(100%|[0-9]{1,2}%)","89%")['89%']最漂亮的解决方案:
>>> re.findall("(?:100|[0-9]{1,2})%","89%")['89%']
简单的解决方案:
>>> re.findall("(100%|[0-9][0-9]%|[0-9]%)","89%")['89%']更漂亮的解决方案:
>>> re.findall("(100%|[0-9]{1,2}%)","89%")['89%']最漂亮的解决方案:
>>> re.findall("(?:100|[0-9]{1,2})%","89%")['89%']