如何在渲染函数中渲染以下代码？

Question

This is the code for App.js (The code commented out is how the Counters component gets rendered in the code)

This is the error I'm getting when I try to render it currently, not able to render it using the class name

This the code for counters.js

提前致谢！我是 React 的新手，任何解决方案都会对我有帮助！