动态初始化swiper时，轮播图划不动得各种bug解决方法

var mybanner = new Swiper('.i-gd-banner', {
speed: 500,
loop: true,
observer:true,//修改swiper自己或子元素时，自动初始化swiper
observeParents:true,//修改swiper的父元素时，自动初始化swiper
autoplay: {
delay: 3000,
stopOnLastSlide: false,
disableOnInteraction: false,
}, //可选选项，自动滑动
pagination: {
el: '.swiper-pagination',
},
});