re.match只匹配字符串的开始,如果字符串开始不符合正则表达式,则匹配失败,函数返回None;而re.search匹配整个字符串,直到找到一个匹配。
下面直接上代码:
########################
import re
line = "Cats are smarter than dogs";
matchObj = re.match(r'dogs', line, re.M | re.I)
if matchObj:
print(
"match --> matchObj.group() : ", matchObj.group())
else:
print(
"No match!!")
matchObj = re.search(r'dogs', line, re.M | re.I)
if matchObj:
print(
"search --> searchObj.group() : ", matchObj.group())
else:
print(
"No match!!")
########################
执行结果如下:
No match!!
search --> searchObj.group() : dogs
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