modify the code of chapter03

Author: qiwsir

python3code/chapter03/decorate.py

@@ -1,4 +1,7 @@
 # coding:utf-8
+'''
+filename: decorate.py
+'''
 
 def p_decorate(func):
     def wrapper(name):

python3code/chapter03/fibsbetter.py

@@ -0,0 +1,15 @@
+# coding:utf-8
+"""
+the better Fibonacci
+filename: fibsbetter.py
+"""
+
+m = {0:0, 1:1}    
+
+def fib(n):
+    if not n in m:    
+        m [n] = fib(n-1) + fib(n-2)
+    return m[n]
+
+f = fib(10)
+print(f)

python3code/chapter03/foo1.py

@@ -0,0 +1,10 @@
+#coding:utf-8
+'''
+filename: foo1.py
+'''
+def foo():
+    def bar():
+        print("bar() is running")
+    print("foo() is running")
+
+foo()        #调用函数

python3code/chapter03/foo2.py

@@ -0,0 +1,11 @@
+#coding:utf-8
+'''
+filename: foo2.py
+'''
+def foo():
+    def bar():
+        print("bar() is running")
+    bar()                    #显示调用内嵌函数
+    print("foo() is running")
+
+foo()

python3code/chapter03/weight.py

@@ -1,5 +1,7 @@
 # coding:utf-8
-
+'''
+filename: weight.py
+'''
 def weight(g):
     def cal_mg(m):
         return m * g