代码如下
import re
html_str = '1.07x10-11 [cm3/molecule s] e-33.09 [±6.95 kJ/mole]/RT'
local = re.findall(r'e(.*) [±', html_str)
print(local)
想输出-33.09这个值但一直出现如下错误
Traceback (most recent call last):
File "C:/Users/Administrator/Desktop/123.py", line 3, in <module>
local = re.findall(r'e(.*) [±', html_str)
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python38-32\lib\re.py", line 241, in findall
return _compile(pattern, flags).findall(string)
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python38-32\lib\re.py", line 304, in _compile
p = sre_compile.compile(pattern, flags)
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python38-32\lib\sre_compile.py", line 764, in compile
p = sre_parse.parse(p, flags)
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python38-32\lib\sre_parse.py", line 948, in parse
p = _parse_sub(source, state, flags & SRE_FLAG_VERBOSE, 0)
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python38-32\lib\sre_parse.py", line 443, in _parse_sub
itemsappend(_parse(source, state, verbose, nested + 1,
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python38-32\lib\sre_parse.py", line 549, in _parse
raise source.error("unterminated character set",
re.error: unterminated character set at position 6
新手,希望大家解答!!!