Python函数调用的几种方式(类里面,类之间,类外面)

class cat():
    def __init__(self,age):
        cat.age = age
    def show_color(self):
        print("The color of the cat is white")
    def show_age(self):
        self.show_color()
        print("The age of the cat is "+str(self.age))
Ragdoll = cat(2)
Ragdoll.show_age()

def show_num(num):
    print(num)
def test(num):
    if num>3:
        show_num(num)
test(4)

def create_cat(color,age):
    print("The age and color of the cat are"+str(age)+color)
def show_cat():
    create_cat(color,age)
show_cat()

def create_cat(color,age):
    print("The age and color of the cat are "+str(age)+" and "+color)
def show_cat(color,age):
    create_cat(color,age)
show_cat("white",3)

class cat():
    def __init__(self,age):
        self.age = age
    def age_increase(self):
        self.age += 1
        print("the age of the cat is "+str(self.age))
def year():
    Ragdoll = cat(3)
    Ragdoll.age_increase()
year()

class cat():
    def __init__(self,age):
        self.age = age
        self.color = "white"
    def age_increase(self):
        self.age += 1
        print("the age of the cat is "+str(self.age))
def year():
    Ragdoll = cat(3)
    Ragdoll.age_increase()
    print(Ragdoll.color)
year()        

class cat():
    def __init__(self,age1):
        self.age1 = age1
    def show_age(self):
        print("the age of the cat is "+str(self.age1))
class dog():
    def __init__(self,age2):
        self.age2 = age2
    def show_cat_age(self):
        Ragdoll = cat(3)
        Ragdoll.show_age()
Husky = dog(2)
Husky.show_cat_age()

class cat():
    def __init__(self,age1):
        self.age1 = age1
        self.color = "white"
    def show_age(self):
        print("the age of the cat is "+str(self.age1))
class dog():
    def __init__(self,age2,Ragdoll):
        self.age2 = age2
        self.Ragdoll = Ragdoll
    def show_cat_age(self,Ragdoll):
        Ragdoll = cat(3)
        Ragdoll.show_age()
        print(self.Ragdoll.color)
        if self.Ragdoll.age1 > self.age2:
            print("the cat is older than the dog")
def run():
    Ragdoll = cat(3)
    Husky = dog(2,Ragdoll)
    Husky.show_cat_age(Ragdoll)
run()