1. re.findall() 与 re.search()

测试代码如下：

findall返回的是一个list，而search返回的是_sre.SRE_Match。

print(urls):

['{\\"count\\":18,\\"sub_images\\":[{\\"url\\":\\"http:\\\\/\\\\/p1.pstatp.com\\\\/origin\\\\/2ebe000042c272cd8ca4\\",\\"width\\":650,\\"url_list\\":[{\\"url\\":\\"http:\\\\/\\\\/p1.pstatp.com\\\\/origin\\\\/2ebe000042c272cd8ca4\\"},{\\"url\\":\\"http:\\\\/\\\\/pb3.pstatp.com\\\\/origin\\\\/2ebe000042c272cd8ca4\\"},{\\"url\\":\\"http:\\\\/\\\\/pb9.pstatp.com\\\\/origin\\\\/2ebe000042c272cd8ca4\\"}],\\"uri\\":\\"origin\\\\/2ebe000042c272cd8ca4\\",\\"height\\":975},{...},...'] (为list)

print('urls1:',urls1):

urls1: <_sre.SRE_Match object; span=(4884, 12806), match='gallery: JSON.parse("{\\"count\\":18,\\"sub_image>

提取search中的信息用，urls1 = re.search(pattern,response.text).group(1)

print(urls1):

{\"count\":18,\"sub_images\":[{\"url\":\"http:\\/\\/p1.pstatp.com\\/origin\\/2ebe000042c272cd8ca4\",\"width\":650,\"url_list\":[{\"url\":\"http:\\/\\/p1.pstatp.com\\/origin\\/2ebe000042c272cd8ca4\"},{\"url\":\"http:\\/\\/pb3.pstatp.com\\/origin\\/2ebe000042c272cd8ca4\"},{\"url\":\"http:\\/\\/pb9.pstatp.com\\/origin\\/2ebe000042c272cd8ca4\"}],\"uri\":\"origin\\/2ebe000042c272cd8ca4\",\"height\":975},{...},...,}

print(type(urls1):

<class 'str'>