day15作业

import math

1

class Auto:
    def __init__(self,wheel_nums=3,color='blue',weight=2,speed=90):
        self.wheel_nums=wheel_nums
        self.color=color
        self.weight=weight
        self.speed=speed
    def speed_up(self):
        self.speed+=40
    def speed_down(self):
        self.speed-=40
    def stop(self):
        self.speed=0
car1=Auto(4,'black',1500,80)
car1=Auto()
car1.stop()
print(car1.__dict__)
class CarAuto(Auto):
    def __init__(self,air,carcd):
        super().__init__()
        self.air=air
        self.carcd=carcd
    def speed_up(self):
        self.speed += 50
    def speed_down(self):
        self.speed -= 50

car2=CarAuto(1,2)
print(car2.__dict__)

2

class Person:
    count_person=0
    def __init__(self):
        Person.count_person+=1

p1=Person()
p2=Person()
p3=Person()
print(Person.count_person)

3

class Animal:
    def __init__(self,gender='雄性',age=2,color='black',type_animal='考拉'):
        self.gender=gender
        self.age=age
        self.color=color
        self.type_animal=type_animal
    def __str__(self):
        return '/Animal的对象：性别-%s,年龄-%d岁,颜色-%s,类型-%s/'%(
            self.gender,self.age,self.color,self.type_animal)
an1=Animal()
print(an1)

4

class WriteError(Exception):
    def __str__(self):
        return '该属性不能赋值!'
class Circular:
    def __init__(self,radius=1):
        self._radius=radius
        self._girth=2*math.pi*self.radius
        self._area=math.pi*(self.radius**2)
    @property
    def radius(self):
        return self._radius
    @radius.setter
    def radius(self,value):
        self._radius=value
        self._girth = 2*math.pi*self._radius
        self._area = math.pi*(self._radius**2)

    @property
    def girth(self):
        return self._girth
    @girth.setter
    def girth(self,value):
        raise WriteError

    @property
    def area(self):
        return self._area
    @area.setter
    def area(self,value):
        raise WriteError
c1=Circular()
print(c1.girth,c1.area)
c1.radius=10
print(c1.girth,c1.area)
# c1.area=100
# print(c1.girth,c1.area)__main__.WriteError: 该属性不能赋值!

5

def trans(str1:str):#格式时间转化为数字时间s
    return int(str1[:2])*60+float(str1[3:])
with open('day15homework.txt',encoding='utf-8') as f1:
    words_song = f1.readlines()

list_obj=[]
class AnalysisSong:
    def __init__(self,words):
        self._words=words
        self._words_time=None
    def show_words(self):
        print(self._words)

    @property
    def words_time(self):
        return self._words_time
    @words_time.setter
    def words_time(self,str1:str):
        # '[00:00.20]\n'
        list_str1=[]
        self._words_time=trans(str1[1:9])

list_obj=[]
words_song[-1]+='\n'
for words in words_song:
    str1=''
    nums=''
    for chr1 in words:
        if '\u4e00' <= chr1 <= '\u9fff':
            str1+=chr1
        else:
            nums+=chr1
    if len(nums)>10:
        while nums[10] != '\n':
            nums = nums[10:]
            nums1=nums[:10]
            song1 = AnalysisSong(str1)
            song1.words_time = nums
            list_obj.append(song1)
    song1=AnalysisSong(str1)
    song1.words_time=nums
    list_obj.append(song1)
list_obj.sort(key=lambda x:x.words_time)
input_time='01:23.33'
input_time=trans(input_time)
for i in range(len(list_obj)-1):
    if list_obj[i].words_time<=input_time<=list_obj[i+1].words_time:
        list_obj[i+1].show_words()#穿过幽暗地岁月