比如象嵌套的Ｔable,而且可能很不规范
传下一个正则表达式的列表，循环匹配，直到正则列表为空
def extract(text,pattenList):
if len(pattenList) == 0:
return text
if len(pattenList) > 0:
patten=pattenList.pop(0)
found=filter(text,patten)
if len(found) > 0:
return extract(''.join(found),pattenList)
传下一个正则表达式的列表，循环匹配，直到正则列表为空
def extract(text,pattenList):
if len(pattenList) == 0:
return text
if len(pattenList) > 0:
patten=pattenList.pop(0)
found=filter(text,patten)
if len(found) > 0:
return extract(''.join(found),pattenList)
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