每当我运行时都会出现错误npm test：
FAIL ./App.test.js\n\xe2\x97\x8f 测试套件运行失败
\nJest encountered an unexpected token\n\nThis usually means that you are trying to import a file which Jest cannot parse, e.g. it's not plain JavaScript.\n\nBy default, if Jest sees a Babel config, it will use that to transform your files, ignoring "node_modules".\n\nHere's what you can do:\n \xe2\x80\xa2 If you are trying to use ECMAScript Modules, see https://jestjs.io/docs/en/ecmascript-modules for how to enable it.\n \xe2\x80\xa2 To have some of your "node_modules" files …