该资料为基于Iphone的一个应用实现流程，及特性列表 原理：利用Iphone自带的加速度感应，MIC等外设实现对Bubble的不同变化-The information is based on an Iphone application implementation process, and features a list of principles: the use of Iphone comes with the acceleration sensor, MIC and other pe

重力感应，三个方向，x，y，z 不同方向不同值-Gravity sensing, three directions, x, y, z different values ​ ​ in different directions