1.add a person component
a.create person component
b.add it to root component
2.correct the file structure
a.create reducer and action folder
b.correct the path
3.finish person component
a.create actions
b.create reducer
c.add props
d.export UI
4.two components communicate with each other
5.optimize code
a.trigger object varible shorthand
b.use index as combine reducer file
