url的参数解析成key-value

    function urlController(url) {
        var _url = url.split("?")[1];
        if(!_url){
            return {};
        }
        var windowHref = _url.split("&"); 
        var obj = {};
        for(var i = 0 ; i < windowHref.length;i++){
            var arr = windowHref[i].split("=");
            obj[arr[0]] = arr[1]
        }
        return obj;
    }