84669 person learning
152542 person learning
20005 person learning
5487 person learning
7821 person learning
359900 person learning
3350 person learning
180660 person learning
48569 person learning
18603 person learning
40936 person learning
1549 person learning
1183 person learning
32909 person learning
Because a lot of pictures are used, the page opens very slowly. How can we optimize it well?
The page has two parts: PC and mobile. The main reason is that the PC is very laggy
图片懒加载:https://www.w3cways.com/1765....,或者CSS Sprite
图片存cdn吧
图片懒加载
将 图片放到 target-src属性 然后在onload之后 修改 src属性 实现异步加载~ 这是其中一种方案
图片懒加载:https://www.w3cways.com/1765....,
或者CSS Sprite
图片存cdn吧
图片懒加载
将 图片放到 target-src属性 然后在onload之后 修改 src属性 实现异步加载~ 这是其中一种方案