定义一个学生类。有属性：姓名、年龄、成绩（语文，数学，英语)[每课成绩的类型为整数]
方法： a. 获取学生的姓名：getname() b. 获取学生的年龄：getage()
c. 返回3门科目中最高的分数。get_course()

class Student:
    def __init__(self, name, age, *score):
        self.name = name
        self.age = age
        self.score = score

    def getname(self):
        print(self.name)

    def getage(self):
        print(self.age)

    def get_course(self):
        print(max(self.score))


student1 = Student('老王', 20, 98, 85, 62)
student1.getname()
student1.getage()
student1.get_course()

创建一个Person类，添加一个类字段用来统计Perosn类的对象的个数

class Person:
    count = 0

    def __init__(self):
        Person.count += 1


for x in range(100):
    x = Person()

print(Person.count) # 打印的100

写一个类，其功能是：1.解析指定的歌词文件的内容 2.按时间显示歌词 提示：歌词文件的内容一般是按下面的格式进行存储的。歌词前面对应的是时间，在对应的时间点可以显示对应的歌词

[00:00.20]蓝莲花
[00:00.80]没有什么能够阻挡
[00:06.53]你对自由地向往
[00:11.59]天马行空的生涯
[00:16.53]你的心了无牵挂
[02:11.27][01:50.22][00:21.95]穿过幽暗地岁月
[02:16.51][01:55.46][00:26.83]也曾感到彷徨
[02:21.81][02:00.60][00:32.30]当你低头地瞬间
[02:26.79][02:05.72][00:37.16]才发觉脚下的路
[02:32.17][00:42.69]心中那自由地世界
[02:37.20][00:47.58]如此的清澈高远
[02:42.32][00:52.72]盛开着永不凋零
[02:47.83][00:57.47]蓝莲花

class LyricsParsing:
    lyrics_dictionary = {}
    sum1 = []
    new_dic = {}

    def __init__(self, name):
        self.name = name
        self.read_files()

    @staticmethod
    def change(string):
        string1 = string[0:2]
        string2 = string[3:]
        if string1.startswith('0'):
            string1 = string1[1:]
        minute = int(string1) * 60
        second = float(string2)
        time = minute + second
        return time

    @staticmethod
    def extract(string, flag=True):
        global lyric
        if flag:
            opposite_string = string[::-1]
            for x in range(len(opposite_string)):
                if opposite_string[x] == ']':
                    lyric = opposite_string[0:x]
                    lyric = lyric[::-1]
                    break
        if string.startswith('['):
            string1 = string[1:9]
            string2 = string[10:]
            string1 = LyricsParsing.change(string1)
            LyricsParsing.lyrics_dictionary[string1] = lyric
            LyricsParsing.extract(string2, False)

    def read_files(self):
        url = './files/' + self.name + '.txt'
        with open(url, 'r', encoding='utf-8') as f:
            while True:
                string = f.readline().strip('\n')
                if not string:
                    break
                LyricsParsing.extract(string)

    @staticmethod
    def sort_key():
        for key in LyricsParsing.lyrics_dictionary:
            LyricsParsing.sum1.append(key)
        LyricsParsing.sum1.sort()

    @staticmethod
    def sort_dict():
        LyricsParsing.new_dic[LyricsParsing.sum1[0]] = '没有歌词'
        for x in range(len(LyricsParsing.sum1)-1):
            value = LyricsParsing.lyrics_dictionary.get(LyricsParsing.sum1[x])
            LyricsParsing.new_dic[LyricsParsing.sum1[x+1]] = value
        else:
            LyricsParsing.new_dic[300] = LyricsParsing.lyrics_dictionary.get(LyricsParsing.sum1[-1])

    def find(self):
        self.read_files()
        LyricsParsing.sort_key()
        LyricsParsing.sort_dict()
        time = float(input('请输入时间(单位:秒):'))
        for x in LyricsParsing.new_dic:
            if x > time:
                print(LyricsParsing.new_dic[x])
                break


song1 = LyricsParsing('蓝莲花')
song1.find()