sdk 中 UIscrollowView 不支持循环滚动，定制该View能够循环滚动-UIscrollowView in SDK isn t support circle scrollowing, but this can do it!

解决iphone中不能使用udid识别设备的情况，来作为一种获取识别码的方法。-Solve the iphone can t use udid identification equipment, as a kind of method for identification。