属性或方法“data”不是在实例上定义的,而是在呈现期间引用的;错误原因
[Vue warn]: Property or method “value” 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,
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首先看报出的错误
[Vue warn]: Property or method “value” 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.
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报错的原因
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就是报出的错误 某属性或方法“value”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,还是对于基于类的组件。
在data中的变量要在实例上定义而不是引用,
像下图 value1,value2:" "
解决的方法
解决的办法也很简单–将变量这样定义即可
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