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在看源码的时候看到这么一段代码:el.innerText.slice(0, -1)。就是疑惑为什么要使用slice(0, -1)再处理一下el.innerTextel.innerText不就已经获取到内容了吗?怎么做有什么用途吗?


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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去除最后一位字符啊


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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