javascript 从url中获得参数方法。

function getParameter(varName)
{
    var query = location.search;
    if (query != null || query != "")
    {
        query = query.replace(/^/?+/, "");
        var qArray = query.split("&");
        var len = qArray.length;
        if (len > 0)
        {
            for (var i=0; i<len; i++)
            {
                var sArray = qArray[i].split("=", 2);
                if (sArray[0] && sArray[1] && sArray[0] == varName)
                {
                    return unescape(sArray[1]);
                }
            }
        }
    }
    return null;
}

 

用法如 （href=http://bound0.com/index.htm?a=1&b=5&c=0&d=6）
asd = getParameter("d")  //asd=6

其中 location.search 就是 ?a=1&b=5&c=0&d=6