$(function () {
            $("#btntest").bind("click", function () {
                $("div").toggle(
                    function(){
                        $(this).hide();
                    },
                    function(){
                        $(this).show();
                    }
                    );
            })
        });

为什么用hide,show不能实现？？？？？？

        $(function () {
            $("#btntest").bind("click", function () {
                $("div").toggle(
                    function(){
                        $(this).css("color","RGB(255,255,255)");
                    },
                    function(){
                        $(this).css("color","RGB(255,255,155)");
                    },
                    function(){
                        $(this).css("color","RGB(255,255,55)");
                    }
                    );
            })
        });

为什么放三个函数就不行呢？？？？？