刚给接口加上了缓存策略，页面加载速度直接起飞
// 缓存逻辑示例
const cache = new Map();
function fetchApi(url) {
if (cache.has(url)) {
return Promise.resolve(cache.get(url));
}
return fetch(url).then(res => res.json()).then(data => {
cache.set(url, data);
return data;
});
}
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