用Python设置例子进行同步赋值、封装与结构

同步赋值示例：

a, b, c = 1, 2, 3
print(a, b, c)  # 输出结果：1 2 3

封装示例：

class Person:
    def __init__(self, name, age):
        self.name = name
        self.age = age

    def __str__(self):
        return f"Name: {self.name}, Age: {self.age}"

person = Person("Alice", 25)
print(person)  # 输出结果：Name: Alice, Age: 25

结构示例：

import math

class Point:
    def __init__(self, x, y):
        self.x = x
        self.y = y

    def distance_to_origin(self):
        return math.sqrt(self.x ** 2 + self.y ** 2)

    def __str__(self):
        return f"({self.x}, {self.y})"

p = Point(3, 4)
print(p)  # 输出结果：(3, 4)
print(p.distance_to_origin())  # 输出结果：5.0