如何在useEffect钩子中插入setState值？

import React, { useEffect, useState } from 'react';

function MyComponent() {
  const [state, setState] = useState(null);
  
  // ...
}

useEffect(() => {
  setState('New State Value');
}, []);

import React, { useEffect, useState } from 'react';

function MyComponent() {
  const [state, setState] = useState(null);
  
  useEffect(() => {
    setState('New State Value');
  }, []);
  
  return (
    <div>
      <p>State value: {state}</p>
    </div>
  );
}

export default MyComponent;