//.babelrc
{"presets":["react-native-stage-0/decorator-support"]}

ps:如果上面出現報錯
Cannot?find?module?'react-native-stage-0/decorator-suppor
npm?install?metro-react-native-babel-preset?-D
將.babelrc改為
{
??"presets":?["module:metro-react-native-babel-preset"],
???"plugins":?[
????["@babel/plugin-proposal-decorators",?{?"legacy":?true?}]???
??]
}