小程序如何对图片进行缓存减少对cdn的请求产生的流量费用？
网友回复
写一个下载到localStorage的辅助函数
const fileSystem = wx.getFileSystemManager()
const getStorageImage = (web_image) => {
let webImages = wx.getStorageSync('webImages') || []
let webImage = webImages.find(y => y.web_path === web_image)
if (webImage) {
try {
fileSystem.accessSync(webImage.local_path)
return webImage.local_path
} catch(e) {
let webImageIdx = webImages.findIndex(y => y.web_path === web...点击查看剩余70%
by thinkfuture
我知道答案，我要回答
私活外包
