#定义一个英雄类（Hero），每个实例拥有名字（name）和等级（level）属性。

#定义实例方法gank，接收一个字符串参数name，打印“准备去GANK {name}”。如果对方name是“鲁班”，返回True；如果name是“凯”则返回False。
#定义实例方法grow_up，作用是将英雄当前等级+1。

class Hero:
    def __init__(self , name , level):
        self.name = name
        self.level = level

    def gank(self , name):
        print(f'准备去GANK {name}')
        if name == "鲁班":
            return True
        elif name == "凯":
            return False

    def grow_up(self):
        self.level += 1

if __name__ == "__main__":
    da_ji = Hero("妲己",1)
    da_ji.grow_up()
    da_ji.grow_up()
    da_ji.grow_up()
    da_ji.grow_up()
    print(da_ji.level)
    result = da_ji.gank(name="鲁班")
    print(result)
    









s = "bdackmkdbb"
char_count = {}
for c in s:
    if c in char_count:
        char_count[c] += 1
    else:
        char_count[c] = 1

second_single_char = None
single_chars = [c for c in char_count if char_count[c] == 1]
if len(single_chars) > 1:
    second_single_char = single_chars[1]

print(second_single_char)
def find_longest_repeated_substring(s):
    n = len(s)
    best_start, best_end, best_len = 0, 0, 0  # 最长重复子串的起点、终点和长度
    for i in range(n):
        for j in range(i + 1, n):
            k = 0
            while j + k < n and s[i + k] == s[j + k]:
                k += 1
            if k > best_len:
                best_start = i
                best_end = j
                best_len = k
    return s[best_start:best_start+best_len]

s = "abcaabcabcdabcde"
print(find_longest_repeated_substring(s))  # 输出 "abc"



class Animal:
    def __init__(self, name, color, age, gender):
        self.name = name
        self.color = color
        self.age = age
        self.gender = gender

    def make_sound(self):
        print(f"{self.name}会叫")

    def run(self):
        print(f"{self.name}会跑")

class Cat(Animal):
    def __init__(self, name, color, age, gender):
        super().__init__(name, color, age, gender)
        self.hair = "短毛"

    def catch_mouse(self):
        print(f"{self.name}会捉老鼠")

    def make_sound(self):
        print(f"{self.name}喵喵叫")

class Dog(Animal):
    def __init__(self, name, color, age, gender):
        super().__init__(name, color, age, gender)
        self.hair = "长毛"

    def watch_house(self):
        print(f"{self.name}会看家")

    def make_sound(self):
        print(f"{self.name}汪汪叫")


if __name__ == '__main__':
    cat = Cat("咪咪" , "黑色" , 2 , "母")
    cat.catch_mouse()
    print(f"{cat.name}的姓名：{cat.name}, 颜色：{cat.color}, 年龄：{cat.age}, 性别：{cat.gender}, 毛发：{cat.hair}, 捉到了老鼠。")

    dog = Dog("旺财" , "黄色" , 3 , "公")
    dog.watch_house()
    print(f"{dog.name}的姓名：{dog.name}, 颜色：{dog.color}, 年龄：{dog.age}, 性别：{dog.gender}, 毛发：{dog.hair}.")