一个利用了XCODE里面PICKERS控件的例程，很详细的描述了控件的使用方法，对做*，IPHONE日期选择器等程序借鉴意义很大~！-A good example which utilizes the PICKERS CONTROL in the XCODE. It described in great detail the use of PICKERS control. It will help a lot in making slot machines, IPHONE date pick