[Vue warn]: Invalid handler for event "enter": got undefined

vue.js:634 [Vue warn]: Property or method “hanleEnter” is not defined on the instance but referenced during render. Make sure that this property is reactive, either in the data option, or for class-based components, by initializing the property. See: https://vuejs.org/v2/guide/reactivity.html#Declaring-Reactive-Properties.

vue.js:634 [Vue warn]: Invalid handler for event “enter”: got undefined

found in

解决办法：

是因为自己单词拼错，马虎，