sale 页面单张swiper不初始化

@@ -16,10 +16,13 @@ var index = 0,
     page = 0,
     pd = "";
 
-swiper = new Swiper('.swiper-container', {
+// slide 个数大于 1 时，使用 swiper ，否则只显示单张图片
+if ($('.swiper-container .swiper-slide').length > 1) {
+    swiper = new Swiper('.swiper-container', {
         lazyLoading: true,
         pagination: '.swiper-pagination'
-});
+    });
+}
 
 lazyLoad($('img.lazy'));
 $curNav = $navList.children('.focus');

@@ -18,7 +18,7 @@ var winH = $(window).height(),
 var swiper;
 
 // slide 个数大于 1 时，使用 swiper ，否则只显示单张图片
-if ($('.swiper-container').length > 1) {
+if ($('.swiper-container .swiper-slide').length > 1) {
     swiper = new Swiper('.swiper-container', {
         lazyLoading: true,
         pagination: '.swiper-pagination'