Property or method "cancleInput" is not defined on the instance but referenced during render.

     因为我的点击事件，是动态添加上去的

报错如标题 

[Vue warn]: Property or method "cancleInput" 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.

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由于Vue不允许动态添加根级别的响应属性，因此必须通过预先声明所有根级别的响应数据属性来初始化Vue实例，即使是空值