/*** * 获得根目录 * @returns */function getRootPath() {    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);    return (prePath + postPath);}