add revers

lambdaplus · lambdaplus · commit 1b9a638ee552 · 2016-05-14T10:08:25.000+08:00
diff --git a/resvers.py b/resvers.py
@@ -0,0 +1,21 @@
+## 翻转列表内的元素
+
+用到`list`的`[pop](https://docs.python.org/3.5/tutorial/datastructures.html)`和`append`方法。
+
+```python
+# -*- coding: utf -8 -*-
+
+from random import randrange
+
+def revers(seq, L=None):
+    while seq:
+        if L is None:
+            L = []
+        L.append(seq.pop())
+    return L
+
+if __name__ == "__main__":
+    lst = [randrange(100) for _ in range(10)]
+    print('This is original list\n', lst)
+    print('This is reversed list\n', revers(lst))
+```
diff --git a/revers.md b/revers.md
@@ -0,0 +1,18 @@
+## 翻转列表内的元素
+用到list的pop和append方法。
+
+# -*- coding: utf -8 -*-
+
+from random import randrange
+
+def revers(seq, L=None):
+    while seq:
+        if L is None:
+            L = []
+        L.append(seq.pop())
+    return L
+
+if __name__ == "__main__":
+    lst = [randrange(100) for _ in range(10)]
+    print('This is original list\n', lst)
+    print('This is reversed list\n', revers(lst))
