vue.js:634 [Vue warn]: Property or method "userName" 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:
老大夫 发布于 2022-05-26 20:03
原因: vue使用了插值表达式,但是未在data中声明
解决: 在data{ } 中声明就好了
转载: https://blog.csdn.net/qq_43498860/article/details/120241962
标签: vue
