以下三种可以匹配包括换行符在内的任意字符：
[\s\S]* 、 [\d\D]*、 [\w\W]*
示例代码如下：
import re
line = 'ver_loss:1.386276092529297;ver_p_ana:0.500774740.860.50096285nan;ver_n_ana:0.50076320.15875nan0.5009661;pp_loss:6.360285034179688;pn_loss:6.539781494140625;'
pattern1 = re.compile(r'ver_loss:(\w*.\w+);[\s\S]*pp_loss:(\w*.\w+);pn_loss:(\w*.\w+);')
pattern2 = re.compile(r'ver_loss:(\w*.\w+);[\d\D]*pp_loss:(\w*.\w+);pn_loss:(\w*.\w+);')
pattern3 = re.compile(r'ver_loss:(\w*.\w+);[\w\W]*pp_loss:(\w*.\w+);pn_loss:(\w*.\w+);')
print(pattern1.findall(line))
print(pattern2.findall(line))
print(pattern3.findall(line))
# output:
# [('1.386276092529297', '6.360285034179688', '6.539781494140625')]
# [('1.386276092529297', '6.360285034179688', '6.539781494140625')]
# [('1.386276092529297', '6.360285034179688', '6.539781494140625')]
