定制数据对象2

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# Author kevin_hou def sanitize(time_string):  #将时间格式化为统一字符串格式     if '-' in time_string:         splitter = '-'     elif ':' in time_string:         splitter = ':'     else:         return(time_string)     (mins, secs) = time_string.split(splitter)     return(mins + '.' + secs)   class Athlete:  #定义父类     def __init__(self, a_name, a_dob=None, a_times=[]):         self.name = a_name         self.don = a_dob         self.times = a_times     def top3(self): #定义筛选前三项子函数         return (sorted(set([sanitize(t) for t in self.times]))[0:3])       def add_time(self, time_value): #将1个额外的计时值追加到选手的计时数据         self.times.append(time_value)       def add_times(self, list_of_times): #用1个或多个计时值（提供为1个列表）         self.times.extend(list_of_times)    #来扩展1个选手的计时数据   def get_coah_data(filename):    #打开文件获取数据     try:         with open(filename) as f:             data = f.readline()         temp1 = data.strip().split(',')         # return ({'Name': temp1.pop(0),         #          'DOB': temp1.pop(0),         #          'Times': str(sorted(set([sanitize(t) for t in temp1]))[0:3])})         return Athlete(temp1.pop(0), temp1.pop(0), temp1)     except IOError as ioerr:         print('File error:' +str(ioerr))         return(None)   james = get_coah_data('james2.txt') sarah = get_coah_data('sarah2.txt') # print(james['Name'] + "'s fastest times are:" + james['Times']) print(james.name + "'s fastest times are:" + str(james.top3())) #James Lee's fastest times are:[' 2.34', '2.01', '2.22'] print(sarah.name + "'s fastest times are:" + str(sarah.top3())) #Sarah Sweeney's fastest times are:['2.18', '2.25', '2.39']   vera = Athlete('Vera Vi') vera.add_time('1.31') print(vera.top3())  #['1.31']   vera.add_times(['2.22', "1;21", '2:22']) print(vera.top3())