公用函数与模块

#! /usr/bin/env python
 
def fib(n):
    a,b = 0,1
    while(b < n):
        print b
        a,b = b,a+b
        
def fib2(n):
    a,b = 0,1
    result = []
    while(b<n):
        result.append(b)
        a,b = b,a+b
    return result

save the file as fibo.py, then enter python enviroment as below:

E:\PyTest>python
Python 2.5.2 (r252:60911, Feb 21 2008, 13:11:45) [MSC v.1310 32 bit (Intel)] on
win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import fibo
>>> fibo.fib(20)
1
1
2
3
5
8
13
>>> from fibo import *
>>> fib(20)
1
1
2
3
5
8
13

 

Pay attention to the difference between import modulename and from modulename import module