ihone中png转换成普通png文件,主要用于在iphone真机种显示png图片的-png convert to common file

iphone 应用, 例程涉及 按键控制,下拉菜单控件,视图转换,数据保存,文件输入输出.-a good example of iphone application, which covering the functions of control button, drop down list, switch control, data persistence, file operation, etc.