在Python中保持变量值

variable = 0

def function():
    global variable
    variable += 1
    print(variable)

function()
function()

class MyClass:
    def __init__(self):
        self.variable = 0

    def function(self):
        self.variable += 1
        print(self.variable)

obj = MyClass()
obj.function()
obj.function()

def outer_function():
    variable = 0

    def inner_function():
        nonlocal variable
        variable += 1
        print(variable)

    return inner_function

my_function = outer_function()
my_function()
my_function()

def generator_function():
    variable = 0
    while True:
        variable += 1
        yield variable

my_generator = generator_function()
print(next(my_generator))
print(next(my_generator))