Python:如何从内部框架更改函数的参数值？

def change_param_value(param):
    param = "new value"

param = "old value"
change_param_value(param)
print(param)  # 输出结果为 "old value"

def change_param_value(param):
    param.append("new value")

param = ["old value"]
change_param_value(param)
print(param)  # 输出结果为 ["old value", "new value"]

def change_param_value():
    global param
    param = "new value"

param = "old value"
change_param_value()
print(param)  # 输出结果为 "new value"