組件化

https://www.jianshu.com/p/116b1354b058

https://www.jianshu.com/p/c7d525dca398

 

https://blog.csdn.net/Cehae/article/details/78112712?utm_source=blogxgwz5

http://www.cocoachina.com/ios/20180308/22509.html