Pyuthon一切皆对象

'''
#1.一切皆对象
# 数据类型 ： 数字类型 布尔类型 字符串类型 列表 字典 集合 元组
s = "hello yuan"
s2 = str("hello yuan")
print(s, type(s2)) # hello yuan <class 'str'>

print(s.upper(), type(s2)) # HELLO YUAN <class 'str'>


l = [1, 2, 3]
l2 = list([2, 3, 4])
print(l2, type(l2)) # [2, 3, 4] <class 'list'>
l2.append(5)
print(l2, type(l2)) # [2, 3, 4, 5] <class 'list'>



#2.扩展案例
class Weapon(object):
    def __init__(self, name, color, attack):
        self.name = name # 武器的名字
        self.color = color # 武器的颜色
        self.attack = attack # 武器的攻击

class Hero(object):
    def __init__(self, name, sex, hp, weapon, level=2, exp=2000, money=10000):
        self.name = name  # 英雄的名字
        self.sex = sex  # 英雄的性别
        self.hp = hp  # 英雄生命值
        self.level = level  # 英雄的等级
        self.exp = exp  # 英雄的经验值
        self.money = money  # 英雄的金币
        self.weapon = weapon  # 英雄的武器
w1 = Weapon("弓箭", "黄色", 180)
print(w1) # <__main__.Weapon object at 0x00000250DA3E7FD0>
huchangxi = Hero("huchangxi","男" ,100, w1)
print(huchangxi) # <__main__.Hero object at 0x00000250DA3E7940>
print(huchangxi.weapon) # <__main__.Weapon object at 0x00000250DA3E7FD0>


#3.误区
#声明类
class Student(object):
    #  类属性
    clsas_name = "34期"
    num = 30
    listen = 100
    # 方法
    def listen(self):
        print("听课")

    def homework(self):
        print("写作业")


print(Student.clsas_name) # 34期
Student.clsas_name = "xxx"

s1 = Student()
print(s1.clsas_name)  # xxx
s1.listen = 100
s1.listen()  # 报错：TypeError: 'int' object is not callable

#详解
#===============================

def TEST():
    TEST = "呼长喜"
    print(TEST)

print (TEST) # 呼长喜
#===============================
TEST2 = 150
def TEST2():
    TEST2 = "呼长喜"
    print(TEST2)

print (TEST2) # 呼长喜

def TEST3():
    TEST3 = "呼长喜"
    print(TEST3)
TEST3 = 150
print (TEST3) # 150
#===============================
'''