📅  最后修改于: 2022-03-11 15:03:56.358000             🧑  作者: Mango
import React, { useRef, useEffect } from 'react';
function CountMyRenders() {
const countRenderRef = useRef(1);
useEffect(function afterRender() {
countRenderRef.current++; });
return (
I've rendered {countRenderRef.current} times
);
}