如何避免在redux更新时重新挂载组件？

import React from 'react';

const MyComponent = React.memo((props) => {
  // 组件的渲染逻辑
});

export default MyComponent;

class MyComponent extends React.Component {
  shouldComponentUpdate(nextProps, nextState) {
    // 比较props和state，如果没有变化则返回false
    return nextProps.someProp !== this.props.someProp || nextState.someState !== this.state.someState;
  }

  render() {
    // 组件的渲染逻辑
  }
}

import React, { useCallback, useMemo } from 'react';

const MyComponent = ({ someProp }) => {
  const memoizedCallback = useCallback(() => {
    // 回调函数的逻辑
  }, [someProp]);

  const memoizedValue = useMemo(() => {
    // 计算结果的逻辑
    return someProp * 2;
  }, [someProp]);

  // 组件的渲染逻辑
};