在此嵌套列表中，将hello替换为告别

nested_list = [[1, 2, [3, "hello"]], 4, [5, [6, [7, "hello"], 8], 9], 10]

def replace_hello(nested_list):
    for i in range(len(nested_list)):
        if isinstance(nested_list[i], list):
            replace_hello(nested_list[i])
        elif nested_list[i] == "hello":
            nested_list[i] = "告别"

replace_hello(nested_list)
print(nested_list)

[[1, 2, [3, '告别']], 4, [5, [6, [7, '告别'], 8], 9], 10]