$("[data-menu]").on("click",function(){$(".menu").removeClass("active-menu-box-topactive-menu-box-bottomactive-menu-box-modalactive-menu-fullactive-sidebar-left-overactive-sidebar-left-pushactive-sidebar-right-pushactive-sidebar-left-parallaxactive-sidebar-right-parallaxactive-sidebar-right-over"),$(".page-content,.header").removeClass("active-body-left-pushactive-body-right-pushactive-body-left-parallaxactive-body-right-parallax"),$(".menu").css({"margin-top":""}),$(".menu-hider").addClass("active-menu-hider");vare=$(this).data("menu-type"),t=$(this).data("menu"),a=$("#"+t).data("menu-height"),o=$("#"+t).data("menu-height")/6;return"menu-full-bottom"===e&&($("#"+t).toggleClass("active-menu-full-bottom"),$("#"+t).hasClass("active-menu-full-bottom")||$(".menu-hider").removeClass("active-menu-hider")),"menu-full-top"===e&&($("#"+t).toggleClass("active-menu-full-top"),$("#"+t).hasClass("active-menu-full-top")||$(".menu-hider").removeClass("active-menu-hider")),"menu-box-modal"===e&&($("#"+t).css({height:a}),$("#"+t).css({"margin-top":a/2*-1}),$("#"+t).toggleClass("active-menu-box-modal")),"menu-box-full"===e&&$("#"+t).toggleClass("active-menu-box-full"),"menu-box-bottom"===e&&($("#"+t).toggleClass("active-menu-box-bottom"),$(".page-content").css("transform","translateY("+-1*o+"px)"),$(".header").css("transform","translateY(-90px)")),"menu-box-top"===e&&($("#"+t).toggleClass("active-menu-box-top"),$(".page-content").css("transform","translateY("+o+"px)"),$(".header").css("transform","translateY(-90px)")),"menu-sidebar-left-over"===e&&$("#"+t).toggleClass("active-sidebar-left-over").addClass("menu-sidebar-shadow"),"menu-sidebar-left-push"===e&&($("#"+t).toggleClass("active-sidebar-left-push"),$(".page-content,.header").toggleClass("active-body-left-push")),"menu-sidebar-left-parallax"===e&&($("#"+t).toggleClass("active-sidebar-left-parallax").addClass("menu-sidebar-shadow"),$(".page-content,.header").toggleClass("active-body-left-parallax")),"menu-sidebar-right-parallax"===e&&($("#"+t).toggleClass("active-sidebar-right-parallax").addClass("menu-sidebar-shadow"),$(".page-content,.header").toggleClass("active-body-right-parallax")),"menu-sidebar-right-over"===e&&$("#"+t).toggleClass("active-sidebar-right-over").addClass("menu-sidebar-shadow"),"menu-sidebar-right-push"===e&&($("#"+t).toggleClass("active-sidebar-right-push"),$(".page-content,.header").toggleClass("active-body-right-push")),!1})return那里返回結(jié)果怎么一大串，很多都用“，”連起來(lái)，這里不太懂，為啥這么寫？還有一點(diǎn)，return"menu-full-bottom"===e&&($("#"+t).toggleClass("active-menu-full-bottom"),有個(gè)邏輯&&運(yùn)算符，怎么這么寫呢，為啥來(lái)個(gè)&&意義在何處??？這種寫法看得我頭疼。可不可以這樣寫？return"menu-full-bottom"===e&&($("#"+t).toggleClass("active-menu-full-bottom"),$("#"+t).hasClass("active-menu-full-bottom")||$(".menu-hider").removeClass("active-menu-hider")),"menu-full-top"===e&&($("#"+t).toggleClass("active-menu-full-top"),$("#"+t).hasClass("active-menu-full-top")||$(".menu-hider").removeClass("active-menu-hider")),"menu-box-modal"===e&&($("#"+t).css({height:a}),$("#"+t).css({"margin-top":a/2*-1}),$("#"+t).toggleClass("active-menu-box-modal")),"menu-box-full"===e&&$("#"+t).toggleClass("active-menu-box-full"),"menu-box-bottom"===e&&($("#"+t).toggleClass("active-menu-box-bottom"),$(".page-content").css("transform","translateY("+-1*o+"px)"),$(".header").css("transform","translateY(-90px)")),"menu-box-top"===e&&($("#"+t).toggleClass("active-menu-box-top"),$(".page-content").css("transform","translateY("+o+"px)"),$(".header").css("transform","translateY(-90px)")),"menu-sidebar-left-over"===e&&$("#"+t).toggleClass("active-sidebar-left-over").addClass("menu-sidebar-shadow"),"menu-sidebar-left-push"===e&&($("#"+t).toggleClass("active-sidebar-left-push"),$(".page-content,.header").toggleClass("active-body-left-push")),"menu-sidebar-left-parallax"===e&&($("#"+t).toggleClass("active-sidebar-left-parallax").addClass("menu-sidebar-shadow"),$(".page-content,.header").toggleClass("active-body-left-parallax")),"menu-sidebar-right-parallax"===e&&($("#"+t).toggleClass("active-sidebar-right-parallax").addClass("menu-sidebar-shadow"),$(".page-content,.header").toggleClass("active-body-right-parallax")),"menu-sidebar-right-over"===e&&$("#"+t).toggleClass("active-sidebar-right-over").addClass("menu-sidebar-shadow"),"menu-sidebar-right-push"===e&&($("#"+t).toggleClass("active-sidebar-right-push"),$(".page-content,.header").toggleClass("active-body-right-push")),!1一個(gè)，一行，這樣寫可以嘛？不然看得我更懵b了。