並前往https://books.google.com.tw/books?id=0LAp57hYSooC&pg=SA1-PA17&lpg=SA1-PA17&dq=youtube+ios&source=bl&ots=VarvNTwiuw&sig=ACfU3U1bhSZrs2LuRRWfnqBrrqldSyYMUA&hl=zh-TW&sa=X&ved=2ahUKEwjuyJ_D7J-AAxUXCbkGHbcHD8YQ6AF6BQi9AhAD