1.在右键点击出涌现div

 //右键涌现禁言框
        var list = $("#userList").children().attr('user_hover');
        for(var i in list)
        {
            list[i].oncontextmenu = function(e){
                var Ovent = e|| event;
                $(".privateButton").css({
                            display:'block',
                            left:Ovent.clientX+'px',
                            top: Ovent.clientY + 'px'
                });
                return false;
            };
        }

2.点击body隐蔽弹框

    $("body").on('click',function(e){
            $(".privateButton").css({
                display:'none'
            });