像在类组件中一样,我们在构造函数中提供状态
constructor(props) {
super(props);
this.state = {....}
像这样,但是我想知道如何在函数中做到这一点?
如果您是指钩子函数,则可以按以下方式使用它:
const [state, setState] = useState({...});
import React, {useState} from 'react'
const Component = () => {
const [state, setState] = useState({});
return <span>{JSON.stringlify(state)}</span>
}