正则表达式#

search#

scan_res = re.search(name, line)
if scan_res != None:
    state = 1

scan_res.group(num)返回匹配的数据

name_cfg=r"START(\w*)END"
regex_1 = re.compile(name_cfg)
res=re.findall(regex_1,line)
if res[0]=='8':

res 返回找到的括号中的内容

re_str = r"START(\w*)END"
replace_str = re.sub(re_str, r"START"+val+r"END", line)