https://www.youtube.com/watch?v=wJQBxPyOWHU&feature=youtu.be
為什麼動態元件放到元件裡面就會自動縮放....
https://www.youtube.com/watch?v=wJQBxPyOWHU&feature=youtu.be
https://www.youtube.com/watch?v=wJQBxPyOWHU&feature=youtu.be
