index.js:1 Warning: This synthetic event is reused for performance reasons. If you're seeing this, you're accessing the property metaKey
on a released/nullified synthetic event. This is set to null. If you must keep the original synthetic event around, use event.persist(). See https://fb.me/react-event-pooling for more information.
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删除列表会报错:
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在删除的Item那里写错了
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改成
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index用错了
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