展示一个基本的正则用例

import re
seq = “ACGTCGATGACTGACGACTCGAACTGACGCATGACGCACGAGCATGAGAGACGCGATACGACGAGACTGA”
pat = [‘ACTG’, ‘[AC]TG’, ‘[^TG]TG’, ‘^[AC]CG’, ‘GA$’, ‘A.G’, ‘A..G’, ‘A.{2}G’, ‘A.{2,4}G’, ‘A.G’, ‘A.?G’, ‘A.+G’, ‘A.+?G’]
for i in pat:     re_obj = re.compile(r”%s” % i)     match_list = re_obj.finditer(seq)     if match_list:         print(i)         for match_part in match_list:             print(match_part.span(), match_part.group())