java - 正則表達式匹配多次出現的內容，并且提取

問題描述

我想提取html中的img的src中的內容，匹配是否有img，如果有全部的src都提取出來，請大神賜教。(用java處理)

這個是測試圖片1<img src='file:///storage/emulated/0/DCIM/Screenshots/Screenshot_hahaha.png' alt=''>這個是測試圖片2<img src='file:///storage/emulated/0/DCIM/Screenshots/Screenshot_lalala.png' alt=''>

問題解答

正則表達式來實現，當然我使用php語言實現

$body = ’<img src='file:///storage/emulated/0/DCIM/Screenshots/Screenshot_hahaha.png' alt=''><img src='file:///storage/emulated/0/DCIM/Screenshots/Screenshot_lalala.png' alt=''>’;$imgreg = '/<img src='http://www.wxshucaidpc.com/wenda/(.*?)'/';if(preg_match_all($imgreg, $body, $matches)){ var_dump($matches[1]);}回答2：

把樓上代碼轉換成js

var body = ’<img src='file:///storage/emulated/0/DCIM/Screenshots/Screenshot_hahaha.png' alt=''><img src='file:///storage/emulated/0/DCIM/Screenshots/Screenshot_lalala.png' alt=''>’var sources = []var imgReg = /<img src='http://www.wxshucaidpc.com/wenda/(.*?)'/gvar matchwhile((match = imgReg.exec(body))){ sources.push(match[1])}console.log(sources)