Spring 2019 First programming test report
First, the pilot project name: bounce the ball
Second, the experimental Item Description Function: increase the display frame, moving the shutter and other functions
Third, the project module description:
Fourth, implement the interface display: 
V. code hosting links: https://gitee.com/zhangyiguang/zhang_yiguangs_warehouse/blob/master/fantanxiaoqiu.cpp
Six experiments Summary: Let the ball rolling, then let him get the number of seconds immediately update coordinates set of coordinates to achieve rolling there is no screen than let him roll to the edge of the screen automatically when the replacement coordinates