-(NSString*)version;
{
NSDictionary *infoDictionary = [[NSBundle mainBundle] infoDictionary];
CFShow((__bridge CFTypeRef)(infoDictionary));
// app版本
NSString *app_Version = [infoDictionary objectForKey:@"CFBundleShortVersionString"];
return app_Version;
}
原文：http://www.cnblogs.com/OIMM/p/5639937.html