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setState异步、同步与进阶
source link: https://juejin.im/post/5bf1444cf265da614a3a1660
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如何使用setState 在 React 日常的使用中，一个很重要的点就是，不要直接去修改 state。例如：this.state.count = 1是无法触发 React 去更新视图的。因为React的机制规定，一个state的更新，首先需要调用 setSt
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