从另一个函数调用函数中定义的变量，而不使用全局

def first_function():
    local_var = "Hello, World!"
    return local_var

def second_function():
    var_from_first = first_function()
    print(var_from_first)

second_function()  # 输出: Hello, World!

def first_function():
    local_var = "Hello, World!"
    return local_var

def second_function(param):
    print(param)

var_to_pass = first_function()
second_function(var_to_pass)  # 输出: Hello, World!

class MyClass:
    def __init__(self):
        self.local_var = None

    def first_method(self):
        self.local_var = "Hello, World!"

    def second_method(self):
        print(self.local_var)

obj = MyClass()
obj.first_method()
obj.second_method()  # 输出: Hello, World!

def outer_function():
    local_var = "Hello, World!"
    
    def inner_function():
        print(local_var)
    
    return inner_function

inner = outer_function()
inner()  # 输出: Hello, World!