python3基础复习：面向对象程序设计方法论和封装

class Student:

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

	def say(self):
		print(f"""我的名字叫{self.name},我的年龄是{self.age},我的性别是：{self.sex}""")

	def study(self,courseName):
		print(f"""我是{self.name},我爱学习{courseName}""")




student1 = Student("李四",30,"男")
student2 = Student("李美",18,"女")

print(f"""student1: {student1} , student2: {student1}""")

print(f"""student1 type is {type(student1)}\n student2 type is {type(student2)}""")

print(f"""student1 id is {id(student1)} \n student2 id is {id(student2)}""")

print(f"""student1 hex(id) is : {hex(id(student1))}""")

student1.say()

student1.study("语文")
print("=======")
student1.name="李四V2"
student1.say()

student1.study("数学")
print("=======")

student2.say()

student2.study("英语")

import time


class Clock:
	def __init__(self,h,m,s):
		self.h = h
		self.m = m
		self.s = s

	def run(self):
		self.s+=1
		if self.s ==60:
			self.s = 0
			self.m += 1
			if self.m == 60:
				self.m = 0
				self.h +=1
				if self.h ==24:
					self.h=0

	def show(self):
		print(f"""{self.h:0>2d}:{self.m:0>2d}:{self.s:0>2d}""")


clock = Clock(23,59,59)

while True:
	clock.show()
	time.sleep(1)
	clock.run()

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

    def distance(self,other):
        return ( (self.x - other.x)**2 + (self.y + other.y)**2 )**0.5

    def show(self):
        print(f"""x= {self.x} ,y={self.y}""")



p1 = Point(1,1)
p2 = Point(3,3)

p1.show()
p2.show()

print(f"""p1 to p2 instance is : {p1.distance(p2)}""")