将整数时间/日期转换为字符串的更简洁方式

Question

我是python的新手,想编写一个程序,需要在日期和时间的字符串和整数表示之间进行转换.

格式是固定的,必须看起来像"02.03.2010 13:32:20"

有比这更简洁的方式吗？

class TimeStamp:
    def __init__(self, day, month, year, hour, minute, second):
        self.day = day
        self.month = month
        self.year = year
        self.hour = hour
        self.minute = minute
        self.second = second

    def __repr__(self):
        string = ""
        if self.day < 10:
            string += "0" + str(self.day)
        else:
            string += str(self.day)
        string += "."
        if self.month < 10:
            string += "0" + str(self.month)
        else:
            string += str(self.month)
        string += "."
        if self.year < 10:
            string += "0" + str(self.year)
        else:
            string += str(self.year)
        string += " "
        if self.hour < 10:
            string += "0" + str(self.hour)
        else:
            string += str(self.hour)
        string += ":"
        if self.hour < 10:
            string += "0" + str(self.hour)
        else:
            string += str(self.hour)
        string += ":"
        if self.hour < 10:
            string += "0" + str(self.hour)
        else:
            string += str(self.hour)
        return string

Answer 1

改用datetime模块; 它.strftime可以轻松满足您的需求和更多.

>>> from datetime import datetime
>>> datetime.now().strftime('%d.%m.%Y %H:%M:%S')
'08.07.2012 14:43:58'
>>> datetime(2010, 3, 2, 13, 32, 20).strftime('%d.%m.%Y %H:%M:%S')
'02.03.2010 13:32:20'