系统版本号和设备名称

获得IOS系统版本号

 [[[UIDevice currentDevice] systemVersion] floatValue]

获得硬件名称

 + (NSString*)getMachine{

  size_t size;

sysctlbyname("hw.machine", NULL, &size, NULL, 0);

 char *name = malloc(size);

  sysctlbyname("hw.machine", name, &size, NULL, 0);

  NSString *machine = [NSString stringWithCString:name encoding:NSUTF8StringEncoding];

   free(name);

   if( [machine isEqualToString:@"i386"] || [machine isEqualToString:@"x86_64"] ) machine = @"ios_Simulator";

     else if( [machine isEqualToString:@"iPhone1,1"] ) machine = @"iPhone_1G";

   else if( [machine isEqualToString:@"iPhone1,2"] ) machine = @"iPhone_3G";

    else if( [machine isEqualToString:@"iPhone2,1"] ) machine = @"iPhone_3GS";

   else if( [machine isEqualToString:@"iPhone3,1"] ) machine = @"iPhone_4";

    else if( [machine isEqualToString:@"iPod1,1"] ) machine = @"iPod_Touch_1G";

  else if( [machine isEqualToString:@"iPod2,1"] ) machine = @"iPod_Touch_2G";

   else if( [machine isEqualToString:@"iPod3,1"] ) machine = @"iPod_Touch_3G";

    else if( [machine isEqualToString:@"iPod4,1"] ) machine = @"iPod_Touch_4G";

     else if( [machine isEqualToString:@"iPad1,1"] ) machine = @"iPad_1";

    else if( [machine isEqualToString:@"iPad2,1"] ) machine = @"iPad_2";

         return machine;

 }

IOS得到当前app 版本号

NSString *curVer = [[[NSBundle mainBundle] infoDictionary] objectForKey:@"CFBundleVersion"];