改变子组件从父组件传递过来的值报错：Avoid mutating a prop directly since the value will be overwritten whenever the pa

问题

改变子组件从父组件传递过来的值报错

解决

增加新的中间变量，将子组件改变后的值通过emit传给父组件
https://blog.csdn.net/xudakaka/article/details/79295517
https://blog.csdn.net/u014520745/article/details/75455979
https://www.cnblogs.com/1rookie/p/8430439.html