怎么匹配出html里的所有图片地址

tavisdxh

HTML文件如下：

1. <p style="padding-right: 0.0px;padding-left: 0.0px;padding-bottom: 0.0px;margin: 1.12em 0.0px;word-spacing: 0.0px;font: 14.0px 21.0px tahoma arial 宋体 sans-serif;text-transform: none;color: #404040;text-indent: 0.0px;padding-top: 0.0px;white-space: normal;letter-spacing: normal;background-color: #ffffff;widows: 2;orphans: 2;webkit-text-size-adjust: auto;webkit-text-stroke-width: 0.0px;"><strong><span style="color: #ff4200;"><span style="font-size: 36.0px;"><span style="font-family: microsoft yahei;">现在是活动特价.不议价.请别浪费彼此的宝贵时间.想议价的亲们请绕道</span></span></span></strong></p><p style="padding-right: 0.0px;padding-left: 0.0px;padding-bottom: 0.0px;margin: 1.12em 0.0px;word-spacing: 0.0px;font: 14.0px 21.0px tahoma arial 宋体 sans-serif;text-transform: none;color: #404040;text-indent: 0.0px;padding-top: 0.0px;white-space: normal;letter-spacing: normal;background-color: #ffffff;widows: 2;orphans: 2;webkit-text-size-adjust: auto;webkit-text-stroke-width: 0.0px;"><strong><span style="color: #ff4200;"><span style="font-size: 36.0px;"><span style="font-family: microsoft yahei;">而行谢谢合作！</span></span></span></strong></p><p style="padding-right: 0.0px;padding-left: 0.0px;padding-bottom: 0.0px;margin: 1.12em 0.0px;word-spacing: 0.0px;font: 14.0px 21.0px tahoma arial 宋体 sans-serif;text-transform: none;color: #404040;text-indent: 0.0px;padding-top: 0.0px;white-space: normal;letter-spacing: normal;background-color: #ffffff;widows: 2;orphans: 2;webkit-text-size-adjust: auto;webkit-text-stroke-width: 0.0px;"><span style="color: #000000;"><strong style="color: #ff0000;font-family: kaiti_gb2312;font-size: 48.0px;line-height: 72.0px;"><span style="background-color: #ffff00;"><span style="background-color: #cc0000;"><span style="background-color: #cccccc;">鞋子偏大一码，建议买小一码。单鞋穿41码，这款买40码即可，棉鞋在出厂的时候已经 留出垫鞋垫的位置了，所以不用特意买大一码哦</span></span></span></strong></span></p><p style="padding-right: 0.0px;padding-left: 0.0px;padding-bottom: 0.0px;margin: 1.12em 0.0px;word-spacing: 0.0px;font: 14.0px 21.0px tahoma arial 宋体 sans-serif;text-transform: none;color: #404040;text-indent: 0.0px;padding-top: 0.0px;white-space: normal;letter-spacing: normal;background-color: #ffffff;widows: 2;orphans: 2;webkit-text-size-adjust: auto;webkit-text-stroke-width: 0.0px;"><strong><span style="color: #ff4200;"><span style="font-size: 36.0px;"><span style="font-family: microsoft yahei;"></span></span></span></strong></p><p style="padding-right: 0.0px;padding-left: 0.0px;padding-bottom: 0.0px;margin: 1.12em 0.0px;word-spacing: 0.0px;font: 14.0px 21.0px tahoma arial 宋体 sans-serif;text-transform: none;color: #404040;text-indent: 0.0px;padding-top: 0.0px;white-space: normal;letter-spacing: normal;background-color: #ffffff;widows: 2;orphans: 2;webkit-text-size-adjust: auto;webkit-text-stroke-width: 0.0px;"><strong><span style="color: #ff4200;"><span style="font-size: 36.0px;"><span style="font-family: microsoft yahei;"></span></span></span></strong><span style="color: #ff6300;"><span style="font-size: 36.0px;"><span style="font-family: microsoft yahei;"><strong>小店默认：申通.中通.需要</strong></span></span></span><span style="color: #ff6300;"><span style="font-size: 36.0px;"><span style="font-family: microsoft yahei;"><strong>指定快递或者以上快递不到，请拍下留</strong></span></span></span></p><p style="padding-right: 0.0px;padding-left: 0.0px;padding-bottom: 0.0px;margin: 1.12em 0.0px;word-spacing: 0.0px;font: 14.0px 21.0px tahoma arial 宋体 sans-serif;text-transform: none;color: #404040;text-indent: 0.0px;padding-top: 0.0px;white-space: normal;letter-spacing: normal;background-color: #ffffff;widows: 2;orphans: 2;webkit-text-size-adjust: auto;webkit-text-stroke-width: 0.0px;"><span style="color: #ff6300;"><span style="font-size: 36.0px;"><span style="font-family: microsoft yahei;"></span></span></span></p><p style="padding-right: 0.0px;padding-left: 0.0px;padding-bottom: 0.0px;margin: 1.12em 0.0px;word-spacing: 0.0px;font: 14.0px 21.0px tahoma arial 宋体 sans-serif;text-transform: none;color: #404040;text-indent: 0.0px;padding-top: 0.0px;white-space: normal;letter-spacing: normal;background-color: #ffffff;widows: 2;orphans: 2;webkit-text-size-adjust: auto;webkit-text-stroke-width: 0.0px;"><span style="color: #ff6300;"><span style="font-size: 36.0px;"><span style="font-family: microsoft yahei;"><strong>言</strong></span></span></span><span style="color: #ff6300;"><span style="font-size: 36.0px;"><span style="font-family: microsoft yahei;"></span></span></span></p><p style="padding-right: 0.0px;padding-left: 0.0px;padding-bottom: 0.0px;margin: 1.12em 0.0px;word-spacing: 0.0px;font: 14.0px 21.0px tahoma arial 宋体 sans-serif;text-transform: none;color: #404040;text-indent: 0.0px;padding-top: 0.0px;white-space: normal;letter-spacing: normal;background-color: #ffffff;widows: 2;orphans: 2;webkit-text-size-adjust: auto;webkit-text-stroke-width: 0.0px;"><span style="color: #ff6300;"><span style="font-size: 36.0px;"><span style="font-family: microsoft yahei;"><span style="color: #ff0000;"><strong>，</strong></span></span></span></span></p><p style="padding-right: 0.0px;padding-left: 0.0px;padding-bottom: 0.0px;margin: 1.12em 0.0px;word-spacing: 0.0px;font: 14.0px 21.0px tahoma arial 宋体 sans-serif;text-transform: none;color: #404040;text-indent: 0.0px;padding-top: 0.0px;white-space: normal;letter-spacing: normal;background-color: #ffffff;widows: 2;orphans: 2;webkit-text-size-adjust: auto;webkit-text-stroke-width: 0.0px;"><span style="color: #ff6300;"><span style="font-size: 36.0px;"><span style="font-family: microsoft yahei;"><strong>早买早便宜！买到就赚到哦 ！下手要快哦哈</strong></span></span></span></p><p style="padding-right: 0.0px;padding-left: 0.0px;padding-bottom: 0.0px;margin: 1.12em 0.0px;word-spacing: 0.0px;font: 14.0px 21.0px tahoma arial 宋体 sans-serif;text-transform: none;color: #404040;text-indent: 0.0px;padding-top: 0.0px;white-space: normal;letter-spacing: normal;background-color: #ffffff;widows: 2;orphans: 2;webkit-text-size-adjust: auto;webkit-text-stroke-width: 0.0px;">&nbsp;</p><p><strong style="color: #ff6300;font-family: microsoft yahei;font-size: 36.363636px;line-height: 49.090908px;"><font color="#ffffff" style="background-color: #ff0000;">下面这款是冬款棉鞋加绒版200&darr;&darr;&darr;</font></strong><strong style="color: #ff6300;font-family: microsoft yahei;font-size: 36.363636px;line-height: 49.090908px;"><font color="#ffffff" style="background-color: #ff0000;">&darr;&darr;</font></strong><img align="absmiddle" src="http://img04.sinacdn.com/imgextra/i4/182406504/T2vqq.XdJXXXXXXXXX_!!182406504.jpg"><img align="absmiddle" src="http://img02.sinacdn.com/imgextra/i2/182406504/T23rO_XbFaXXXXXXXX_!!182406504.jpg"><img align="absmiddle" src="http://img03.sinacdn.com/imgextra/i3/182406504/T2r9K_XihXXXXXXXXX_!!182406504.jpg"><img align="absmiddle" src="http://img02.sinacdn.com/imgextra/i2/182406504/T2kYS_XixaXXXXXXXX_!!182406504.jpg"><img align="absmiddle" src="http://img04.sinacdn.com/imgextra/i4/182406504/T2GGi_XgBaXXXXXXXX_!!182406504.jpg"><img 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需求：查找里面所有的JPG，并保存到队列
我使用

1. imgURLs=re.compile(r'"src="http://(.*?).jpg"').search(albumData).group()

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匹配出来的只是一个
而且还会匹配出

1. "http://item.taobao.com/item.htm?id=15040347289&source=superboss&appId=19"><img border="0" height="240" width="240" src="http://img04.taobaocdn.com/bao/uploaded/i4/T1ELIaXcXbXXaRtOQ9_104043.jpg_310x310.jpg"
   

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这个怎么处理？

106033177

1. p = re.compile('src="http://.*?\.jpg')
   
2. for r in  p.findall(s):
   
3.     print r
   

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回复 1# tavisdxh


   

crifan

简答：
找多个，用findall
找单个，用search

详解：
早就写好教程了：
【整理】Python中的re.search和re.findall之间的区别和联系 + re.finall中带命名的组，不带命名的组，非捕获的组，没有分组四种类型之间的区别

你这里，如果想要找src后面的图片地址，可以用：

1. (?<=src=")https?://[/\w-.]\.((jpg)|(bmp)|(png))(?=")

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如此，就可以匹配：
1.http或https开头的
2.后面内容中，运行 字母数字下划线，-，.，等，如果运行其他字符，自己添加进入即可
3.
对于

1. src="http://img04.taobaocdn.com/bao/uploaded/i4/T1ELIaXcXbXXaRtOQ9_104043.jpg_310x310.jpg"

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可以找到：

1. http://img04.taobaocdn.com/bao/uploaded/i4/T1ELIaXcXbXXaRtOQ9_104043.jpg_310x310.jpg

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而不是：

1. http://img04.taobaocdn.com/bao/uploaded/i4/T1ELIaXcXbXXaRtOQ9_104043.jpg

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4.bmp，jpg，png等

相关教程：
【教程】详解Python正则表达式
中的：
【教程】详解Python正则表达式之： (?<=…) positive lookbehind assertion 后向匹配 /后向断言
【教程】详解Python正则表达式之： (?=…) lookahead assertion 前向匹配 /前向断言

tavisdxh

回复 3# crifan


    非常感谢。学习。

tavisdxh

回复 2# 106033177


    感谢！:wink: