如何在react组件类中使用react-spring

npm install react-spring

import { useSpring, animated } from 'react-spring';

const [animationProps, setAnimationProps] = useState({ opacity: 0, transform: 'translateY(-100px)' });

render() {
  const animation = useSpring(animationProps);
  
  return (
    <animated.div style={animation}>
      {/* 动画元素 */}
    </animated.div>
  );
}

useEffect(() => {
  setAnimationProps({ opacity: 1, transform: 'translateY(0)' });
}, []);