js to get all the image addresses in the html code

/** 
 * JS获取html代码中所有的图片地址 
 * @param htmlstr 
 * @returns imgsrcArr 数组 
 */  
function getimgsrc(htmlstr) {  
    var reg = /<img.+?src=('|")?([^'"]+)('|")?(?:\s+|>)/gim;  
    var imgsrcArr = [];  
    while (tem = reg.exec(htmlstr)) {  
        imgsrcArr.push(tem[2]);  
    }  
    return imgsrcArr;  
}

<script type="text/javascript"> $(function () { $('pre.prettyprint code').each(function () { var lines = $(this).text().split('\n').length; var $numbering = $('<ul/>').addClass('pre-numbering').hide(); $(this).addClass('has-numbering').parent().append($numbering); for (i = 1; i <= lines; i++) { $numbering.append($('<li/>').text(i)); }; $numbering.fadeIn(1700); }); }); </script>