iPhone平台上开发的应用程序，在屏幕上绘制直线，实现直线随手指一动等，可用于股票等应用的制作-iPhone platform development of applications that draw a straight line on the screen to achieve a straight line with the finger movement and so on, can be used for applications such as the production of

iPhone iPad 股票图 Yahoo 的股票数据接口-iPhone iPad stock chart Yahoo' s stock data interface