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如何实现滚动到顶部加载更多聊天记录?

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如何实现滚动到顶部加载更多聊天记录?

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可以使用onscroll事件判断是否触顶，然后进行加载


与恶龙缠斗过久,自身亦成为恶龙；凝视深渊过久,深渊将回以凝视…
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