Python入门的36个例子 之 18
例1：
# _018
# This is a module (if write Chinese in a module, there will be a error)
def func1():
print 'This is function 1.'
def func2():
print 'This is function 2.'
def func3():
print 'This is function 3.'
# 019
# 使用“import”语句调用模块：
import _018_Module
_018_Module.func1()
_018_Module.func2()
_018_Module.func3()
output：
This is function 1.
This is function 2.
This is function 3.
例2：
# _018
# This is a module (if write Chinese in a module, there will be a error)
def func1():
print 'This is function 1.'
def func2():
print 'This is function 2.'
def func3():
print 'This is function 3.'
# 020
# 使用“from ... import ...”语句调用模块
from _018_Module import func2
import _018_Module
_018_Module.func1()
func2()
_018_Module.func3()
output：
This is function 1.
This is function 2.
This is function 3.
例3：
# _018
# This is a module (if write Chinese in a module, there will be a error)
def func1():
print 'This is function 1.'
def func2():
print 'This is function 2.'
def func3():
print 'This is function 3.'
# 021
# 使用“from ... import *”语句调用模块
from _018_Module import *
func1()
func2()
func3()
output：
This is function 1.
This is function 2.
This is function 3.
相关文档：
import time,thread
def test(a,b):
for i in range(a,b):
time.sleep(1)
print i
def start():
thread.start_new_thread(test,(1,1001))
thread.start_new_thread(test,(1000,2001))
if __name__=='__main__':
start()
......
Python代码优化--少打字小技巧
说明：增加代码的描述力，可以成倍减少你的LOC，做到简单，并且真切有力
观点：少打字＝多思考＋少出错，10代码行比50行更能让人明白，以下技巧有助于提高5倍工作效率
1. 交换变量值时避免使用临时变量：(cookbook1.1)
老代码：我们经常很熟练于下面的代码
temp = x
x = y
y = ......
# 017
def lifeIsAMirror():
string = raw_input()
if string == 'I love you!':
return 'I love you, too!'
elif string == 'Fuck you!':
return ''
else:
return
# end of def
string = lifeIsAMirror()
if len(string) == 0:
print 'You have nothing.'
else: ......
代码很简单，不到5k行。但是思路挺好的，改成non-blocking了之后效率就是能提高不少，特别是考虑到现代的web app都需要和其他的
HTTP服务器通信，blocking的代价太大了。 Tornado is an open source version of the scalable, non-blocking web server and tools that power FriendFeed. The FriendFeed application ......
