Question

我尝试使用文件中的数据提取并使用它创建对象。

数据示例：ACB，20170327,0.058,0.058,0.058,0.058,175116

这是数据的格式： stock_code，日期，opening_price，HIGH_PRICE，LOW_PRICE，closing_price，体积

我试图创建一个像这样的对象：

stock_code = TradingData（date，opening_price，high_price，low_price，closing_price，volume）

这是我到目前为止所得到的

class TradingData(object) :
    """Stock market data for a single day of trading for one stock.

        The trading data includes the:
        Date of trading
        Value of opening (first) trade
        Value of highest trade
        Value of lowest trade
        Value of closing (final) trade
        Volume of shares traded
    """
    def __init__(self, date, day_open, day_high, day_low, day_close, volume):
        """
        Parameters:
            date (str): Date in yyyymmdd format.
            day_open (float): Dollar value of the first trade of the day.
            day_high (float): Dollar value of the highest trade of the day.
            day_low  (float): Dollar value of the lowest trade of the day.
            day_close (float): Dollar value of the last trade of the day.
            volume (int): The number of shares traded on this day.
        """
        self._date = date
        self._open = day_open
        self._high = day_high
        self._low = day_low
        self._close = day_close
        self._volume = volume

    def get_date(self) :
        """(str) The date of this day of trading."""
        return self._date

    def set_date(self, date) :
        self._date = date

    def get_open(self) :
        """(float) Value of the opening trade of the day."""
        return self._open

    def set_open(self, day_open) :
        self._open = day_open

    def get_high(self) :
        """(float) Value of highest trade of the day."""
        return self._high

    def set_high(self, day_high) :
        self._high = day_high

    def get_low(self) :
        """(float) Value of lowest trade of the day."""
        return self._low

    def set_low(self, day_low) :
        self._low = day_low

    def get_close(self) :
        """(float) Value of final trade of the day."""
        return self._close

    def set_close(self, day_close) :
        self._close = day_close

    def get_volume(self) :
        """(int) Value of highest trade of the day."""
        return self._volume

    def set_volume(self, volume) :
        self._volume = volume

class Loader(object) :
    """Abstract class defining basic process of loading trading data."""

    def __init__(self, filename, stocks) :
        """Data is loaded on object creation.

           Parameters:
           filename (str): Name of the file from which to load data.
           stocks (StockCollection): Collection of existing stock market data 
           to which the new data will be added.
        """
    self._stocks = stocks
    with open(filename, "r") as file :
        self._process(file)

def _process(self, file) :
    """Load and parse the stock market data from 'file'."""
    raise NotImplementedError()



class LoadCSV(Loader):
    def __init__(self, filename, stocks):
        super().__init__(filename, stocks)

    def _process(self, file):
        for stock in file:
            stock.split(',')[0] = stocks.TradingData(stock.split(',')[1],
                                                     stock.split(',')[2],
                                                     stock.split(',')[3],
                                                     stock.split(',')[4],
                                                     stock.split(',')[5],
                                                     stock.split(',')[6])
        print(stocks.split(',')[0].TradingData())

Answer 1

for stock in file:
    parse_trading_data(stock)

def parse_trading_data(stock):
    str_arr = stock.split(',')
    data = {
               "date": str_arr[0],

                    ...

           }
   return TradingData(data)

这样的东西？

从读取文件创建对象

1 个答案: