函数学习

xjchenhao · xjchenhao · commit 43d30d69cd7e · 2015-05-17T16:08:59.000+08:00
diff --git a/python/函数/area.py b/python/函数/area.py
@@ -0,0 +1,21 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+# @Date    : 2015-05-17 14:41:50
+# @Author  : chenhao (wy.chenhao@qq.com)
+# @Link    : http://www.xjchenhao.cn
+# @Version : $Id$
+
+import math
+
+
+def area(radius):
+    """ 返回一个圆的面积
+    用给定的半径。
+    例如:
+    >>> area(5.5)
+    95.0331777711
+    """
+    return math.pi * radius ** 2
+
+print(area(5.5))
+print(area.__doc__)
diff --git a/python/函数/global_corrent.py b/python/函数/global_corrent.py
@@ -0,0 +1,20 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+# @Date    : 2015-05-17 15:05:22
+# @Author  : chenhao (wy.chenhao@qq.com)
+# @Link    : http://www.xjchenhao.cn
+# @Version : $Id$
+
+name = 'Jack'
+
+
+def say_hello():
+    print('Hello ' + name + ' !')
+
+
+def change_name(new_name):
+    global name
+    name = new_name
+say_hello()
+change_name('chenhao')
+say_hello()
diff --git a/python/函数/global_error.py b/python/函数/global_error.py
@@ -0,0 +1,19 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+# @Date    : 2015-05-17 15:02:52
+# @Author  : chenhao (wy.chenhao@qq.com)
+# @Link    : http://www.xjchenhao.cn
+# @Version : $Id$
+
+name = 'Jack'
+
+
+def say_hello():
+    print('Hello ' + name + ' !')
+
+
+def change_name(new_name):
+    name = new_name
+say_hello()
+change_name('chenhao')
+say_hello()
diff --git a/python/函数/greetings.py b/python/函数/greetings.py
@@ -0,0 +1,12 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+# @Date    : 2015-05-17 15:17:04
+# @Author  : chenhao (wy.chenhao@qq.com)
+# @Link    : http://www.xjchenhao.cn
+# @Version : $Id$
+
+
+def greet(name, greeting='Hello'):
+    print(greeting + ' ' + name + '!')
+greet('chenhao', 'hi')
+greet('chenhao')
diff --git a/python/函数/import_shapes1.py b/python/函数/import_shapes1.py
@@ -0,0 +1,11 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+# @Date    : 2015-05-17 15:50:58
+# @Author  : chenhao (wy.chenhao@qq.com)
+# @Link    : http://www.xjchenhao.cn
+# @Version : $Id$
+
+import shapes
+# print(dir(shapes))
+
+shapes.rectangle(2, 3)
diff --git a/python/函数/import_shapes2.py b/python/函数/import_shapes2.py
@@ -0,0 +1,10 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+# @Date    : 2015-05-17 15:57:43
+# @Author  : chenhao (wy.chenhao@qq.com)
+# @Link    : http://www.xjchenhao.cn
+# @Version : $Id$
+
+from shapes import *
+
+rectangle(2, 3)
diff --git a/python/函数/shapes.py b/python/函数/shapes.py
@@ -0,0 +1,37 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+# @Date    : 2015-05-17 15:32:03
+# @Author  : chenhao (wy.chenhao@qq.com)
+# @Link    : http://www.xjchenhao.cn
+# @Version : $Id$
+
+"""
+    函数的集合
+    打印基本形状
+"""
+CHAR = '*'
+
+
+def rectangle(heigh, width):
+    """打印矩形."""
+    for row in range(heigh):
+        for col in range(width):
+            print(CHAR),
+        print('')
+
+
+def square(side):
+    """打印一个正方形."""
+    rectangle(side, side)
+
+
+def triangle(heigh):
+    """打印直角三角形."""
+    for row in range(heigh):
+        for col in range(1, row + 2):
+            print(CHAR),
+        print('')
+
+# rectangle(2, 3)
+# square(3)
+# triangle(3)
diff --git a/python/函数/shopping.py b/python/函数/shopping.py
@@ -0,0 +1,16 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+# @Date    : 2015-05-17 15:24:42
+# @Author  : chenhao (wy.chenhao@qq.com)
+# @Link    : http://www.xjchenhao.cn
+# @Version : $Id$
+
+
+def shop(where='store',
+         what='pasta',
+         howmuch='10 pounds'):
+    print('I want you to go to the ' + where)
+    print('and buy ' + howmuch + ' of ' + what + '.')
+shop()
+
+shop(where='xianju', howmuch='30 pounds')
