学步园

var strFullPath = window.document.location.href;
var strPath = window.document.location.pathname;
var pos = strFullPath.indexOf(strPath);
var prePath = strFullPath.substring(0, pos);
var postPath = strPath.substring(0, strPath.substr(1).indexOf('/') + 1);
var path = prePath + postPath;
试验过的  获取前半部分地址