javascript 正则搜索 js正则查找

<script>
var str='<p><img style="width: 140px; height: 105px;" alt="" src="/ckfinder/userfiles/images/qi_cym.jpg" data-cke-saved-src="/ckfinder/userfiles/images/qi_cym.jpg"></p><p><br></p>';var reg = new RegExp("(<img.*src=\"\.*?\>)");  //正则表达式
str.match(reg);//从字符串str中查找src="/ckfinder/userfiles/images/qi_cym.jpg"这段字符串
var re = /src="([^"]*)"/g;  //只查找 /ckfinder/userfiles/images/qi_cym.jpg 这段路径
    alert(str.match(reg));
    while (arr = re.exec(str)) {
        alert(arr[1]);
    }
</script>