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vue父组件中如何销毁子组件

一个下拉框组件,父组件销毁后子组件依然保留的,子组件是追加到document.body中的。
image
想问下,如何在父组件销毁的时候同时销毁掉这种追加到body中的子组件?


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在使用document.body.append的时候都要考虑该内容会不会用到document.body.remove去删除,是否需要提前暴露删除方法。


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