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参考了一下mdn的教程

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木容畏

#1 Created at ... [Delete] [Delete and Lock User]

//是否理解为? -1 降序 1 升序 0 保持不变

木容畏

#2 Created at ... [Delete] [Delete and Lock User]

借助工具已经理解了,过程如下 10<20,-1,[10,20,1,2] 20>1,1,[10,20,20,2] 10>1,1,[1,10,20,2] 20>2,1,[1,10,20,20] 10>2,1,[1,10,10,20] 1<2,-1,[1,2,10,20]

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#3 Created at ... [Delete] [Delete and Lock User]

不是这样的吗? 10<20,-1,[10,20,1,2] 20>1,1,[10,1,20,2] 10>1,1,[1,10,20,2] 20>2,1,[1,10,2,20] 10>2,1,[1,2,10,20] 1<2,-1,[1,2,10,20]


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