如何将变量设置为显示方法之外的内容？

# Python 示例
global_var = None

def set_value(value):
    global global_var
    global_var = value

set_value("Hello, World!")
print(global_var)  # 输出: Hello, World!

def get_value():
    return "Hello, World!"

value = get_value()
print(value)  # 输出: Hello, World!

def process_value(value):
    return value.upper()

input_value = "Hello, World!"
processed_value = process_value(input_value)
print(processed_value)  # 输出: HELLO, WORLD!

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

    def set_value(self, value):
        self.value = value

obj = MyClass()
obj.set_value("Hello, World!")
print(obj.value)  # 输出: Hello, World!

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

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