浏览器后台报错，Vue组件的坑：property or method " " is not defined on the instance but referenced during render.Make sure that this property in reactive,either in the data,or for class-based

页面那个很正常，但是浏览器后天一直报错：property or method "组件名 " is not defined on the instance but referenced during render.Make sure that this property in reactive,either in the data,or for class-based 

以前也遇到过，这个是：有个方法或者属性在数据data里没定义，无法实现数据的响应式的样式，提供观察发现父组件里有个v-model“组件名”，确实在data里没定义属性，初始值给个

因为v-models=属性名“”，是Vue双向绑定，必须现在data里定义个初始值，在发福利改变值或状态：所以

data（）{
v-model的绑定属性：false；// 可以了
}