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We set the values of their text nodes to the empty string and 0, respectively.
我们将其文本节点的值分别设为空字符串和0。
youdao
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If that nodes are not empty, there is no deletion.
如果该节点不是空的，是不能被删除的。
youdao
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If that nodes are not empty, there is no deletion.
如果该节点不是空的，是不能被删除的。
youdao