动态监控窗口是PC或Phone（闭包数据传输）返回“Pc”或“phone”

function handlePX() {
  let swiperInstance = null;

  return function (status) {
    console.log(status);
    if (swiperInstance) {
      swiperInstance.update({
        slidesPerView: status == "pc" ? 1.354 : 1.253,
        coverflowEffect:
          status == "pc"
            ? {
                rotate: 0,
                stretch: "45%",
                depth: 500,
                // modifier: 2,
                slideShadows: false,
              }
            : {
                rotate: 90,
                stretch: "34%",
                depth: 500,
                // modifier: 2,
                slideShadows: false,
              },
      });
    } else {
      swiperInstance = new Swiper(".swiper", {
        init: true,
        initialSlide: 1, //开始时显示哪个slid
        centeredSlidesBounds: true,
        slidesPerView: status == "pc" ? 1.354 : 1.253,
        centeredSlides: true,
        on: {
          slideChangeTransitionEnd: function () {
            //console.log(this.activeIndex - 4); //切换结束时，告诉我现在是第几个slide，循环模式下需要计算
            document.getElementById("slidTitle").innerHTML =
              text[this.activeIndex - 4].title;
            document.getElementById("slidText").innerHTML =
              text[this.activeIndex - 4].text;
            // console.log(document.getElementById("slidText"));
          },
          //data-swiper-slide-index
        },
        loop: true, // 循环模式选项
        loopAdditionalSlides: 1,
        // autoplay: true,
        preventClicksPropagation: false, //拖动时阻止click事件
        effect: "coverflow",
        grabCursor: true, //鼠标变成手掌
        resizeObserver: true,
        coverflowEffect:
          status == "pc"
            ? {
                rotate: 0,
                stretch: "45%",
                depth: 500,
                // modifier: 2,
                slideShadows: false,
              }
            : {
                rotate: 0,
                stretch: "34%",
                depth: 1000,
                // modifier: 2,
                slideShadows: false,
              },
        // 如果需要分页器
        pagination: {
          el: ".swiper-pagination",
          clickable: true,
        },
        // 如果需要前进后退按钮
        navigation: {
          nextEl: ".swiper-button-next",
          prevEl: ".swiper-button-prev",
          hiddenClass: "my-button-hidden",
        },
      });
    }

    return swiperInstance;
  };
}
let swiperCreate = handlePX();
var width = document.body.clientWidth;
// var swiperInstance = handlePX;
if (width >= 750) {
  swiperCreate("pc");
} else {
  swiperCreate("phone");
}
window.onresize = function () {
  const lastWidth = width;
  const nowWidth = document.body.clientWidth;
  if (lastWidth < 750 && nowWidth >= 750) {
    swiperCreate("pc");
  } else if (lastWidth >= 750 && nowWidth < 750) {
    swiperCreate("phone");
  }
  width = nowWidth;
};

标签：闭包,status,750,pc,Pc,swiperCreate,swiperInstance,Phone,true
来源： https://www.cnblogs.com/Simoon/p/16516029.html