12
refs
回调函数
冒泡
父组件中转
Context
Redux
看这里https://harekaze-misakiakeno.github.io/2021/01/07/%E5%8F%91%E5%B8%83%E8%AE%A2%E9%98%85%E6%A8%A1%E5%BC%8F/