相同功能,演进实现
数据文件
sarah2.txt
sarah Sweeney,2002-6-17,2:58,2.58,2:39,2-25,2-55,2:54,2.18,2:55,2:55
1- 返回dict
return({'Name':data_list.pop(0),
'DOB':data_list.pop(0),
'Time':str( sorted( set([sanitize(t) for t in data_list] ) )[0:3])})
def sanitize(time_string):
if '-' in time_string:
splitter = '-'
elif ':' in time_string:
splitter = ':'
else:
return (time_string) (mins, secs) = time_string.split(splitter)
return(mins + '.' + secs) def get_coach_data(filename):
try:
with open(filename) as f:
data = f.readline()
data_list = data.strip().split(',')
return({'Name':data_list.pop(0),
'DOB':data_list.pop(0),
'Time':str( sorted( set([sanitize(t) for t in data_list] ) )[0:3])})
except IOError as err:
print("file err:" + str(err))
return(none) julie = get_coach_data('julie2.txt')
james = get_coach_data('james2.txt')
sarah = get_coach_data('sarah2.txt')
mikey = get_coach_data('mikey2.txt') print( julie['Name'] + "'s faster time are:" + julie['Time'])
print( james['Name'] + "'s faster time are:" + james['Time'])
print( sarah['Name'] + "'s faster time are:" + sarah['Time'])
print( mikey['Name'] + "'s faster time are:" + mikey['Time'])
2- 返回类 return ( Athlete(datalist.pop(0), datalist.pop(0), datalist))
def sanitize(time_string):
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:
def __init__(self, a_name, a_dob = None, a_time = []):
self.name = a_name
self.dob = a_dob
self.times = a_time def top3(self):
return( sorted(set([sanitize(t) for t in self.times]))[0:3] ) def add_time(self,time_value):
self.times.append(time_value) def add_times(self,list_of_times):
self.times.extend(list_of_times) def get_coach_data(filename):
try:
with open(filename) as f:
data = f.readline();
datalist = data.strip().split(',')
return ( Athlete(datalist.pop(0), datalist.pop(0), datalist))
except IOError as err:
print('file err:' + str(err))
return(none) julie = get_coach_data('julie2.txt')
james = get_coach_data('james2.txt')
sarah = get_coach_data('sarah2.txt')
mikey = get_coach_data('mikey2.txt') print(julie.name + "'s faster times are:" + str(julie.top3()))
print(james.name + "'s faster times are:" + str(james.top3()))
print(sarah.name + "'s faster times are:" + str(sarah.top3()))
print(mikey.name + "'s faster times are:" + str(mikey.top3())) vera = Athlete('vera vi')
vera.add_time('1.30')
print(vera.top3())
vera.add_times(['1.00','0.3','1.2'])
print(vera.top3())
3- 继承python内置list
class Athletelist(list):
def __init__(self, a_name, a_dob = None, a_times = []):
list.__init__([])
self.name = a_name
self.dob = a_dob
self.extend(a_times)
def top3(self):
return( sorted( set([sanitize(t) for t in self] ) )[0:3]) def sanitize(time_string):
if '-' in time_string:
splitter = '-'
elif ':' in time_string:
splitter = ':'
else:
return(time_string) (mins, secs) = time_string.split(splitter)
return(mins + "." + secs) #vera = Athletelist("vera vi")
#vera.append('1.31')
#print(vera.top3())
#vera.extend(["1","2","0"])
#print(vera.top3()) def get_coach_data(filename):
try:
with open(filename) as f:
data = f.readline();
datalist = data.strip().split(',')
return ( Athletelist(datalist.pop(0), datalist.pop(0), datalist))
except IOError as err:
print('file err:' + str(err))
return(none) julie = get_coach_data('julie2.txt')
james = get_coach_data('james2.txt')
sarah = get_coach_data('sarah2.txt')
mikey = get_coach_data('mikey2.txt') print(julie.name + "'s faster times are:" + str(julie.top3()))
print(james.name + "'s faster times are:" + str(james.top3()))
print(sarah.name + "'s faster times are:" + str(sarah.top3()))
print(mikey.name + "'s faster times are:" + str(mikey.top3()))