並前往https://medium.com/%E5%BD%BC%E5%BE%97%E6%BD%98%E7%9A%84-swift-ios-app-%E9%96%8B%E7%99%BC%E6%95%99%E5%AE%A4/work-7-4-5-spinner-%E8%BD%89%E7%9B%A4-13817d579495