const Posts = () => { const [posts, setPosts] = useState([]); useEffect(() => { const getPosts = async () => { const resp = await fetch(API); const postsResp = await resp.json(); setPosts(postsResp); }; getPosts(); }, []); return ''; }; export default Posts; This topic created in 1608 days ago, the information mentioned may be changed or developed.
 | 1 noe132 Dec 17, 2021 setTimeout / setInterval |
 | 2 mx8Y3o5w3M70LC4y Dec 17, 2021 via Android 你这个 getposts 如果其他地方没用到，是不需要定义的，直接 async()=>{...}() |
 | 3 br_wang Dec 17, 2021 1. 定义一个 state ，比如 refreshCount; 2. refreshCount 并声明为 effect 的依赖，利用 setRefreshCount 变更 refreshCount 值触发 effect 重新执行; 3. 可以 setTimeout 或 setInterval ，周期性调用 setRefreshCount 实现刷新； 4. 也可以把 setRefreshCount 绑到按钮上，手动触发刷新； 5. 注意竞速问题。 |
 | 4 baolinliu442k Dec 17, 2021 setTimeOut(()->{ getPosts(); }, time) |
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