1.在storyboard中添加一个view controller
2.给新添加的view controller添加一个tab bar item
3.Add the segue
- 按住control键，从tab bar controller 拖动到tab bar item controller
- 选中Realtionship Segue中的view controllers即可
image.png
参考
https://www.albertgao.xyz/2017/12/14/how-to-add-item-for-tab-bar-controller/
DONE
