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js 新增下标递增,删除某个下标,在新增的时候回收删除的下标

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js 新增下标递增,删除某个下标,在新增的时候回收删除的下标

比如说
新增折线图,在新增折线图1 ,在新增折线图2, 在新增 折线图3

然后删除折线图2
在新增的话 是折线图2 ,在新增折线图4

请问下这个是如何实现的


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by (71.8m points)

临时数组保存被删除的下标，如果为空，默认末尾插入，不为空，则取出赋值


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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