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手把手实现图片懒加载+封装vue懒加载组件
source link: https://juejin.im/post/5c52ee216fb9a049ee80e283
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1、为什么要懒加载或者预加载图片对页面加载速度影响非常大当页面图片比较多，加载速度慢，非常影响用户体验 思考一下，页面有可能有几百张图片，但是首屏上需要展示的可能就一张而已，其他的那些图片能不能晚一点再加载，比如用户往下滚动的时候…… 这
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