index.js:1375 Warning: Functions are not valid as a React child. This may happen if you return a Component instead of <Component /> from render. Or maybe you meant to call this function rather than return it. in A (at App.js:9) in div (at App.js:8
index.js:1375 Warning: Functions are not valid as a React child. This may happen if you return a Component instead of <Component /> from render. Or maybe you meant to call this function rather than return it.
in A (at App.js:9)
in div (at App.js:8)
in App (at src/index.js:5)
报错了
