Commit 27381c9

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Merge pull request youngyangyang04#1674 from Jack-Zhang-1314/patch-5

update 206翻转链表 about rust

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Original file line number	Diff line number	Diff line change
`@@ -588,5 +588,45 @@ object Solution {`
`588`	`588`
`589`	`589`	`}`
`590`	`590`	```
	`591`	`+`
	`592`	`+Rust:`
	`593`	`+双指针法:`
	`594`	`+`
	`595`	+```rust
	`596`	`+impl Solution {`
	`597`	`+ pub fn reverse_list(head: Option<Box<ListNode>>) -> Option<Box<ListNode>> {`
	`598`	`+ let mut cur = head;`
	`599`	`+ let mut pre = None;`
	`600`	`+ while let Some(mut node) = cur.take() {`
	`601`	`+ cur = node.next;`
	`602`	`+ node.next = pre;`
	`603`	`+ pre = Some(node);`
	`604`	`+ }`
	`605`	`+ pre`
	`606`	`+ }`
	`607`	`+}`
	`608`	+```
	`609`	`+`
	`610`	`+递归法:`
	`611`	`+`
	`612`	+```rust
	`613`	`+impl Solution {`
	`614`	`+ pub fn reverse_list(head: Option<Box<ListNode>>) -> Option<Box<ListNode>> {`
	`615`	`+ fn rev(`
	`616`	`+ mut head: Option<Box<ListNode>>,`
	`617`	`+ mut pre: Option<Box<ListNode>>,`
	`618`	`+ ) -> Option<Box<ListNode>> {`
	`619`	`+ if let Some(mut node) = head.take() {`
	`620`	`+ let cur = node.next;`
	`621`	`+ node.next = pre;`
	`622`	`+ pre = Some(node);`
	`623`	`+ return rev(cur, pre);`
	`624`	`+ }`
	`625`	`+ pre`
	`626`	`+ }`
	`627`	`+ rev(head, None)`
	`628`	`+ }`
	`629`	`+}`
	`630`	+```
`591`	`631`	`-----------------------`
`592`	`632`	`<div align="center"><img src=https://code-thinking.cdn.bcebos.com/pics/01二维码一.jpg width=500> </img></div>`

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