swiper 滑动插件，小屏单个显示滑动，大屏全部显示

var currSwiperIndex=0;
function widthHandle(){
var level = widthLevel();
if(level==1){
//单个显示，滑动
if(mySwiper==null){
mySwiper = new Swiper('.swiper-container',{
initialSlide: currSwiperIndex,
});
}
}else{
//4个都显示
if(mySwiper!=null){
currSwiperIndex = mySwiper.activeIndex;
mySwiper.destroy(true,true);
mySwiper = null;
}
var width = $(".container").width();
$(".gonggao").css("width",width/4+"px");
}
}