substring

var d_url=document.location.href;
var d_url1=d_url.split(".html")[0];
var d_url2=d_url1.split("/")[5];
//http://localhost:8080/fg/cs/articleInformationDetail.html?param=022005
//截取param的值
//substring里只有第几位到第几位
var param = d_url.substring(d_url.length- 6,d_url.length);