re模块3

#分组 () 
print(re.findall("(ad)/(vv)","adddad/vvdddddddddd"))
print(re.findall("(ad)/(d)","ad/ddad/vvdddddddddd"))
print(re.findall("(a)(d)","adddad/vvdddddddddd"))  #分组中间要有个字母和特殊符号隔开
print(re.findall("(ad)/d(da)","ad/ddad/vvdddddddddd"))
print(re.search("(a)g(b)","adagbgdagbhagb").group())
print(re.findall("(a)g(b)","adagbgdagbh"))

ret = re.search("(?P<id>\d{2}):(?P<name>\w{2})","25:a5")
print(ret.group()) #25:a5
print(ret.group("id")) #25
print(ret.group("name")) #a5

print(re.search("a[bf]c","abcd").group()) #abc  字符串型
print(re.findall("a[bf]c","abcd")) #['abc']  列表型


# |
print(re.findall("a|b","afbgh"))   #['a', 'b']  需要匹配所有的a和b
print(re.search("a|b","gaafbghagdbg").group())  #a    只需要匹配所有的a和b
print(re.search("(ab)|f","gaabfbghagdbg").group()) #ab

print(re.search("\d|gg","ds125ffgg").group())  #1