js冒泡事件的特例toggle无法实现阻止冒泡——slideDown()和slideUp()

$(".content_problem").toggle(
            function(){
                $(this).find(".answer").slideDown();
            },
            function(){
                $(this).find(".answer").slideUp();
            }
);

$(document).on("click",".content_problem",function(){
            var $answer = $(this).find(".answer");
            if ($answer.is(":hidden")) {
                $answer.stop(true,true).slideDown();
            } else {
                $answer.stop(true,true).slideUp();
            }
});

function deleteQuestion(){
        $(".delete").live("click",function(){
            var questionId = $(this).parents(".content_problem").find(".questionid").val();
            var area = $("this").parents(".content_problem");
            $.ajax({
                url : "${ctx}/exercise/deleteWrongQuestion",
                type : "POST",
                dataType : "html",
                data : {
                    "questionId" : questionId,
                },
                success : function(data) {
                    if(data!=0){//返回非0值证明执行成功，需将总题目数量减一，并将该题从页面上移除
                        var total = parseInt($(".conTitle").html())-1;
                        $("#pageCount").val(total);
                        $(".conTitle").html(total);
                        $(".page").trigger(‘reloadPage‘,Math.ceil(total/5));//重新分页
                    }else{
                        Tosn.info({
                             title : "提示",
                             cont : "网络异常，请稍后再试"
                        });
                    }
                }
            });
            return false;
        });
    }