添加0922按奇偶排序数组II Python版本

problems/0922.按奇偶排序数组II.md

@@ -149,7 +149,32 @@ class Solution {
 
 ## Python
 
-```python
+```python3
+#方法2
+class Solution:
+    def sortArrayByParityII(self, nums: List[int]) -> List[int]:
+        result = [0]*len(nums)
+        evenIndex = 0
+        oddIndex = 1
+        for i in range(len(nums)):
+            if nums[i] % 2: #奇数
+                result[oddIndex] = nums[i]
+                oddIndex += 2
+            else: #偶数
+                result[evenIndex] = nums[i]
+                evenIndex += 2
+        return result
+
+#方法3
+class Solution:
+    def sortArrayByParityII(self, nums: List[int]) -> List[int]:
+        oddIndex = 1
+        for i in range(0,len(nums),2): #步长为2
+            if nums[i] % 2: #偶数位遇到奇数
+                while  nums[oddIndex] % 2: #奇数位找偶数
+                    oddIndex += 2
+                nums[i], nums[oddIndex] = nums[oddIndex], nums[i]
+        return nums
 ```
 
 ## Go