Vue报错（Property or method "xxx" is not defined on the instance but referenced during render.）

报错如下：
Property or method “xxx” 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.
属性或方法“xxx”不是在实例上定义的，而是在呈现期间引用的。通过初始化该属性，确保该属性是反应性的，无论是在data选项中，还是在基于类的组件中。

原因:
你的“”xxx‘’属性或者"xxx"方法没有定义，查看你的data或者methods或者prop
解决：

export default {
 data(){
  return{
    xxx:""
  }，
 methods:{
    xxx(){}
 }
 },
}