js to get the src attribute of the image regularly

1. Regularly get the img tag in the string

  try {

      var str = '<P>xczxzxzxcxcxc<IMG src="http://file.ynet.com/2/1612/12/12119048.jpg" mce_src="http://file.ynet.com/2/1612/12/12119048.jpg">dfsd<IMG src="http://file.ynet.com/2/1612/12/12119048.jpg" mce_src="http://file.ynet.com/2/1612/12/12119048.jpg">sdfs</P>';
      //获取img 标签
     var s = str.match(/<img\s*src=\"([^\"]*?)\"[^>]*>/gi);

      for (var i = 0; i < s.length; i++) {
        console.info(s[i]);
      }
    }
    catch (e) {
      alert(e);
    }

Cut processing according to img tag

   s2=str.split(/\<img\s*src=\"([^\"]*?)\"[^>]*>/gi);

Second, js uses regular to obtain or replace the src attribute

content.replace(/<img [^>]*src=['"]([^'"]+)[^>]*>/gi, function (match, capture) {
  console.log(capture);
});

output:

http://www.jb51.net/images/logo.gif

 

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