The goal of this app is mainly for the trading of second-hand goods on campus.The use group for this app is mainly collage students.If you are interested in,you can also add an administrator's authority to manage student information and commodity information.The href of CSDN is https://blog.csdn.net/chenpeixing361/article/details/91542797 .If you feel helpful in your study,please don't marry your star.Thanks for everyone!The running screenshots are as follows:

The Login interface:

The Register interface:

The Main interface:

The Daily necessities interface:

The Commodity detail interface:

The Personal center interface:

The Personal information interface:

The My release interface:

The My collection interface:

The Modifying password interface:

The Introduction about app interface:

The Exit app interface: