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Merge pull requestyoungyangyang04#435 from borninfreedom/master

update反转字符串，添加了python更加简洁的写法

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Lines changed: 12 additions & 1 deletion

Original file line number	Diff line number	Diff line change
`@@ -155,7 +155,7 @@ class Solution {`
`155`	`155`	```
`156`	`156`
`157`	`157`	`Python：`
`158`		-```python3
	`158`	+```python
`159`	`159`	`classSolution:`
`160`	`160`	`defreverseString(self,s: List[str]) ->None:`
`161`	`161`	`"""`
`@@ -166,6 +166,17 @@ class Solution:`
`166`	`166`	`s[left], s[right]= s[right], s[left]`
`167`	`167`	`left+=1`
`168`	`168`	`right-=1`
	`169`	`+`
	`170`	`+# 下面的写法更加简洁，但是都是同样的算法`
	`171`	`+# class Solution:`
	`172`	`+# def reverseString(self, s: List[str]) -> None:`
	`173`	`+# """`
	`174`	`+# Do not return anything, modify s in-place instead.`
	`175`	`+# """`
	`176`	`+# 不需要判别是偶数个还是奇数个序列，因为奇数个的时候，中间那个不需要交换就可`
	`177`	`+# for i in range(len(s)//2):`
	`178`	`+# s[i], s[len(s)-1-i] = s[len(s)-1-i], s[i]`
	`179`	`+# return s`
`169`	`180`	```
`170`	`181`
`171`	`182`	`Go：`

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