#coding:utf-8 
import urllib2,re,time,random,os,datetime
import HTMLParser
import sys 
reload(sys) 
sys.setdefaultencoding('utf-8') 
 
#計(jì)算時(shí)間函數(shù) 
def print_run_time(func): 
 def wrapper(*args, **kw): 
  local_time = time.time() 
  func(*args, **kw) 
  print 'current Function [%s] run time is %.2f' % (func.__name__ ,time.time() - local_time) 
 return wrapper 

class test:
	def __init__(self):
		self.url=''
	#獲取網(wǎng)頁頁面內(nèi)容
	#即裝飾器不管參數(shù)有多少，都能使用
	@print_run_time
	def get_html(self,url):
		headers = {'User-Agent':'Mozilla/5.0 (Windows NT 6.2; rv:16.0) Gecko/20100101 Firefox/16.0'}#設(shè)置header
		req = urllib2.Request(url=url,headers=headers)
		try:
			html = urllib2.urlopen(req).read().decode('utf-8')
			html=HTMLParser.HTMLParser().unescape(html)#處理網(wǎng)頁內(nèi)容， 可以將一些html類型的符號(hào)如" 轉(zhuǎn)換回雙引號(hào)
			#html = html.decode('utf-8','replace').encode(sys.getfilesystemencoding())#轉(zhuǎn)碼:避免輸出出現(xiàn)亂碼
		except urllib2.HTTPError,e:
			print(2,u"連接頁面失敗，錯(cuò)誤原因： %s" % e.code)
			return None
		except urllib2.URLError,e:
			if hasattr(e,'reason'):
				print(2,u"連接頁面失敗，錯(cuò)誤原因：%s" % e.reason)
				return None
		return html
		
	#在類的內(nèi)部使用裝飾器
	@print_run_time
	def run(self):
		self.url='http://www.baidu.com'
		self.get_html(self.url)
		print 'end'
		
#在外面直接使用裝飾器
@print_run_time
def get_current_dir(spath):
	#spath=os.getcwd()
	#spath=os.path.abspath(os.curdir)
		
	for schild in os.listdir(spath): 
		schildpath=spath+'/'+schild 
		if os.path.isdir(schildpath): 
			get_current_dir(schildpath) 
		else: 
			print schildpath 
	
if __name__ == '__main__':
	my_test=test()
	my_test.run()
	spath=os.path.abspath('.')
	get_current_dir(spath)

current Function [get_html] run time is 0.29 
end 
current Function [run] run time is 0.29 
05.python_study/03.decorator.py 
current Function [get_current_dir] run time is 0.00