diff --git "a/ArrayAndLink/\346\234\250\346\234\250\347\203\275/141.py" "b/ArrayAndLink/\346\234\250\346\234\250\347\203\275/141.py"
new file mode 100644
index 0000000000000000000000000000000000000000..4bcd3222ab2a7a298031b74eff4fb5f2e9a3df9e
--- /dev/null
+++ "b/ArrayAndLink/\346\234\250\346\234\250\347\203\275/141.py"
@@ -0,0 +1,34 @@
+class Solution(object):
+
+#解法一：快慢指针
+    def hasCycle(self, head)：
+        if head == None:
+            return False
+        
+        fast,slow = head,head
+        while fast.next != None and fast.next.next != None:
+            slow = slow.next
+            fast = fast.next.next
+            if slow == fast:
+                return True
+            else:
+                return False
+
+        return False
+
+#解法二：反转链表
+    def reverseList(self, head):
+        pre = None
+        cur = head
+        while cur != None:
+            lat = cur.next
+            cur.next = pre
+            pre = cur
+            cur = lat
+
+        return pre
+
+    def hasCycle1(self,head):
+        if head != None and head.next != None and self.reverseList(head) == head:
+            return True
+        return False
\ No newline at end of file
diff --git "a/ArrayAndLink/\346\234\250\346\234\250\347\203\275/LeetCode142.py" "b/ArrayAndLink/\346\234\250\346\234\250\347\203\275/LeetCode142.py"
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git "a/ArrayAndLink/\346\234\250\346\234\250\347\203\275/LeetCode24.py" "b/ArrayAndLink/\346\234\250\346\234\250\347\203\275/LeetCode24.py"
new file mode 100644
index 0000000000000000000000000000000000000000..b1568f2963edc08d14e192eaac1ccf833aad65e1
--- /dev/null
+++ "b/ArrayAndLink/\346\234\250\346\234\250\347\203\275/LeetCode24.py"
@@ -0,0 +1,10 @@
+class Solution(object):
+    def swapPairs(self, head):
+        cur = head
+        cur.next = head.next
+        while cur:
+            cur,cur.next = head.next,head
+            cur = head.next.next
+
+        return False
+        
\ No newline at end of file
diff --git "a/ArrayAndLink/\346\234\250\346\234\250\347\203\275/LeetCode300.py" "b/ArrayAndLink/\346\234\250\346\234\250\347\203\275/LeetCode300.py"
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git "a/ArrayAndLink/\346\234\250\346\234\250\347\203\275/leetcode206.py" "b/ArrayAndLink/\346\234\250\346\234\250\347\203\275/leetcode206.py"
new file mode 100644
index 0000000000000000000000000000000000000000..7d31a378e72dad2e187b4c5e7ff9d24fe6768d3c
--- /dev/null
+++ "b/ArrayAndLink/\346\234\250\346\234\250\347\203\275/leetcode206.py"
@@ -0,0 +1,14 @@
+#@Author:木木烽
+#LeetCode：206反转链表
+#参考：https://blog.csdn.net/qq_17550379/article/details/80647926
+#语言：python3
+#时间复杂度：O(n)
+#空间复杂度：O(1)
+#思路：1、设置两个指针：cur，pre；2、对链表进行反转
+
+class Solution:
+    def reverserList(self,head):
+        cur,pre = head,None
+        while cur:
+            cur.next,pre,cur = pre,cur,cur.next
+        return pre
\ No newline at end of file
diff --git "a/StackAndQueue/\346\234\250\346\234\250\347\203\275_225.PNG" "b/StackAndQueue/\346\234\250\346\234\250\347\203\275_225.PNG"
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/leetcode46.png b/leetcode46.png
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391