並前往https://books.google.com.tw/books?id=WBysBAAAQBAJ&pg=PA46&lpg=PA46&dq=loop&source=bl&ots=yPhbzwRY_1&sig=ACfU3U0py-frfej-iEbnbxxuaI1ETq96KQ&hl=zh-TW&sa=X&ved=2ahUKEwiezLPJnJz-AhWuxQIHHQl4DfsQ6AF6BQjjAhAD