Action param msg export const Action = ( msg ? ) => ( target , property , descriptor ) => { target . _route || ( target . _route = { } ) ; /**
     * 如果有actor的Action中有重名的事件名，warning
     */ if ( process . env . NODE_ENV != "production" ) { if ( target . _route [ msg ] ) { const actorName = target . constructor . name ; console . warn ( `😎${ actorName } had @Action('${ msg }'), Please review your code.` ) ; } } msg || ( msg = property ) ; target . _route [ msg ] = descriptor . value ; } ;