#!/usr/bin/python
#DownByDate.py sh600115 2014-12-29 2015-3-15
#DownByDate.py stock_num start_date end_date

#http://stock.gtimg.cn/data/index.php?appn=detail&action=download&c=sh600115&d=20141229
#sh600115_2014-12-29.txt

import sys
import urllib
import datetime

def download_date(src_url,dest_file):
	download=urllib.FancyURLopener();
	download_page=download.open(src_url);
	savefile=file(dest_file,'wb+');
	while True:
		arr = download_page.read();
		if len(arr)==0:
			break;
		savefile.write(arr);
	savefile.flush();
	savefile.close();
	return

stock_code=sys.argv[1]
str_0='''http://stock.gtimg.cn/data/index.php?appn=detail&action=download&c='''
str_0=str_0 + stock_code + '&d='
date_start=datetime.datetime.strptime(sys.argv[2],'%Y-%m-%d')
if len(sys.argv)>3:
	date_end=datetime.datetime.strptime(sys.argv[3],'%Y-%m-%d')
else:
	date_end=date_start+datetime.timedelta(days=1)

while date_start<date_end:
	str_date=date_start.strftime('%Y%02m%02d')
	str_url=str_0+str_date
	str_file=stock_code + '_' + date_start.strftime('%Y-%02m-%02d') + '.txt'
	download_date(str_url,str_file)
	print str_file
	date_start=date_start+datetime.timedelta(days=1)

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