掘友等级
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Avoid mutating a prop directly since the value will be overwritten whenever the parent component re-renders. Instead, use a data or computed property based on the prop's value. Prop being mutated: "placement"
出现这种报错应该怎么解决?
写ts文件运行的时候，出现这种报错，有网友知道怎么处理吗？
