re.search 掃描整個字符串并返回第一個成功的匹配。

上碼：

import re

line = "Cats are smarter than dogs";

searchObj = re.search(r'(.*) are (.*?) .*', line)

if searchObj:

print("searchObj.group() :", searchObj.group())

print("searchObj.group(1):", searchObj.group(1))

print("searchObj.group(2):", searchObj.group(2))

else:

print("Nothing found!!")

運行結果：

F:\dev\python\python.exe F:/pyCharm/practice/config_dir/zip_demo.py

searchObj.group() : Cats are smarter than dogs

searchObj.group(1): Cats

searchObj.group(2): smarter

Process finished with exit code 0

碼2：

import re

print(re.search('www', 'www.runoob.com').span())

print(re.search('com', 'www.runoob.com').span())

運行結果：

F:\dev\python\python.exe F:/pyCharm/practice/config_dir/zip_demo.py

(0, 3)

(11, 14)

Process finished with exit code 0

總結

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