add slice and map

michaelliao · michaelliao · commit 55adb464d5a1 · 2015-03-30T22:33:13.000+08:00
diff --git a/py3/advance/do_slice.py b/py3/advance/do_slice.py
@@ -0,0 +1,16 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+L = ['Michael', 'Sarah', 'Tracy', 'Bob', 'Jack']
+
+print('L[0:3] =', L[0:3])
+print('L[:3] =', L[:3])
+print('L[1:3] =', L[1:3])
+print('L[-2:] =', L[-2:])
+
+R = list(range(100))
+print('R[:10] =', R[:10])
+print('R[-10:] =', R[-10:])
+print('R[10:20] =', R[10:20])
+print('R[:10:2] =', R[:10:2])
+print('R[::5] =', R[::5])
diff --git a/py3/functional/do_map.py b/py3/functional/do_map.py
@@ -0,0 +1,7 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+def f(x):
+    return x * x
+
+print(list(map(f, [1, 2, 3, 4, 5, 6, 7, 8, 9])))
