删除二叉树层序遍历637Java解法中没有必要的语句 #1817
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这句代码是多余的，因为删除它后程序能够正常编译运行，并且这句代码对程序的运行没有起任何作用。 |
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'' TreeNode peek = que.peekFirst(); '' 这句程序语句在代码中没有起作用，并且没有必要存在。