如何管理嵌套函数中的全局变量

def outer_function():
    global global_variable
    global_variable = 10
    
    def inner_function():
        global global_variable
        global_variable += 5
        print(global_variable)
    
    inner_function()

outer_function()

def outer_function():
    outer_variable = 10
    
    def inner_function():
        nonlocal outer_variable
        outer_variable += 5
        print(outer_variable)
    
    inner_function()

outer_function()

def outer_function():
    global_variable = 10
    
    def inner_function(global_variable):
        global_variable += 5
        print(global_variable)
    
    inner_function(global_variable)

outer_function()