[Feature]: 可否增加一个监听事件 #227
Description
Is your feature request related to a problem? Please describe.
给脚本系统增加一个onUnload,以便在卸载时调用插件提供的函数，比如清除定时器什么的
要不然不好搞aaa
Describe the solution you'd like
同上
Describe alternatives you've considered
No response
Additional context
No response