gistfile1.py

import os
from os.path import getsize
import struct

class CDate:
    def __init__(self, year=0, month=0, day=0)
        self.year = year
        self.month = month
        self.day = day

class CTdxDayData:
    def __init__(self):
        self.date = 0
        self.open = 0
        self.high = 0
        self.low = 0
        self.close = 0
        self.amount = 0
        self.vol = 0
        self.unknown = 0

class CStockDayData:
    def __init__(self, szStockNum):
        self.pFileData = ""

        tdx_path = "E:\\Program Files\\new_ztzq_v6\\Vipdoc\\"

        szFilePath=tdx_path+ "sh\\lday\\sh" +szStockNum+ ".day"
        if szStockNum[0] in ['0', '3']:
            szFilePath=tdx_path+ "sz\\lday\\sz" +szStockNum+ ".day"

        self.nFileSize = getsize(szFilePath)

        with open(szFilePath, 'rb') as f:
            self.pFileData = f.read()


    def getClosePrice(self, date):
        fClosePrice = 0
        szDate = "%4d%02d%02d" % (date.year, date.month, date.day)
        nDate = int(szDate)

        size = 32 # sizeof(CTdxDayData)
        buf_len = 

        data = CTdxDayData()
        for i in range(len(self.pFileData) / size)
            p = self.pFileData[i*size:(i+1)*size]
            data.date,data.open,data.high,data.low,data.close,data.amount,data.vol,data.unknown = struct.unpack("5if2i",p)
            if( data.date==nDate ):
                fClosePrice = data.close
                break

        return fClosePrice

szStockNum = raw_input("input Stock Numer: ")

sdd = CStockDayData(szStockNum)
print sdd.szStockNum
print sdd.pFileData[0:10]
close = sdd.getClosePrice(CDate(2012, 10, 10))
print close