python模式匹配找出字符串中的信息

import re
text = """3843700   "4c4e276567929c747ab6709b"  null    "12345678”  zzzzz"""#用户id，微信号，null，QQ号,没用的字符串
pattern = re.compile(r'(.*?) +(.*?) +null +(.*?) +(.*?).*', re.I)   # re.I 表示忽略大小写
m = pattern.finditer(text)
a = ["用户id","微信号","QQ号"]
b = [m[0],m[1],m[2]]
c = dict(zip(a,b))
print(c)



import re
pattern1 = re.compile(r'"\w+"\tnull\t".+"\t\d+\t\d\t\d\t\d')
#print(pattern1.findall(user))
it = pattern1.finditer("2287345    \"4db7abcc6a238ed5d8e486d8\"   null   \"DJ Mike too the rescue!\"    1303971421  0   1   1  \"4bf58dd8d48988d1e5931735\"   \"4c7c6b4fdbaa76b04e1c314b\"   null   \"\"The best teachers only come from Pen.\"\"  1303711907 0  1  1  ")
for march in it:
    print(march.group()+'\n')

第二段存在匹配过长的问题