属性或方法“getCoditions”不是在实例上定义的，而是在渲染期间引用的。

1.可能是变量存在相同的名称

2.可能是vue组件中有两个methods: {}

Property or method "getCoditions" 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.