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Python学习38天

article 2024/12/5 3:43:30

class Person:

    def __init__(self, name, age, job):
        self.name = name
        self.age = age
        self.job = job

    # 重写函数返回属性
    def __str__(self):
        return f"{self.name}--{self.age}--{self.job}"


# 冒泡排序法
def bubble_sort(my_list: list[Person]):
    """
    冒泡排序，从大到小排列
    :param my_list:
    :return:
    """
    # j控制总排序次数
    for j in range(len(my_list) - 1):
        # i控制每次排序比较的次数
        for i in range(len(my_list) - 1 - j):
            # 当列表中后一个的年龄大于前一个的年龄时，交换
            if list[i].age < list[i + 1].age:
                # 两数交换
                list[i], list[i + 1] = list[i + 1], list[i]


p1 = Person("tom", 35, "老师")
p2 = Person("amy", 18, "学生")
p3 = Person("jack", 52, "校长")

list = [p1, p2, p3]

print("排列前".center(32, "_"))
# 遍历列表
for i in range(len(list)):
    print(list[i])

# 使用sort进行排序
'''
key=lambda ele:ele.age--表示我指定按照列表元素的age属性进行排序
reverse=True--表示逆序-从大到小排列
reverse=False--表示顺序-从小到大排列
'''
list.sort(key=lambda ele: ele.age, reverse=False)

print("从小到达排列后".center(32, "_"))
for i in range(len(list)):
    print(list[i])

# 调用冒泡排序函数
bubble_sort(list)

print("从大到小排列后".center(32, "_"))
for i in range(len(list)):
    print(list[i])

class Doctor:

    def __init__(self, name, age, job, gender, sal):
        self.name = name
        self.age = age
        self.job = job
        self.gender = gender
        self.sal = sal

    # 重写eq方法
    def __eq__(self, other):
        # 首先判断比较直是否为同类
        if not isinstance(other,Doctor):
            return False
        else:
            return (self.name == other.name
                    and self.age == other.age
                    and self.job == other.job
                    and self.gender == other.gender
                    and self.sal == other.sal)


p1 = Doctor("tom", 28, "护士", "女", 10000)
p2 = Doctor("tom", 28, "护士", "女", 10000)

# p1==p2默认会调用__eq__方法
print("p1==p2",p1==p2)