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Merge pull request #2479 from bluedusk/master
Update 0024.两两交换链表中的节点.md
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@ -285,6 +285,21 @@ var swapPairs = function (head) {
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};
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```
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```javascript
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// 递归版本
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var swapPairs = function (head) {
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if (head == null || head.next == null) {
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return head;
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}
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let after = head.next;
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head.next = swapPairs(after.next);
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after.next = head;
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return after;
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};
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```
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### TypeScript:
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```typescript
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