checkVersion

[BaseService postJSONWithUrl:APP_URL parameters:nil success:^(id responseObject)
    {
        NSDictionary *dic = [NSJSONSerialization JSONObjectWithData:responseObject options:NSJSONReadingMutableContainers error:nil removingNulls:YES ignoreArrays:NO];
        NSArray *infoArray = [dic objectForKey:@"results"];
        if ([infoArray count])
        {
            NSDictionary *releaseInfo = [infoArray objectAtIndex:0];
            NSDictionary *infoDic = [[NSBundle mainBundle] infoDictionary];
            NSString *currentVersion = [[infoDic objectForKey:@"CFBundleShortVersionString"] stringByReplacingOccurrencesOfString:@"." withString:@""];
            NSString *lastVersion = [[releaseInfo objectForKey:@"version"] stringByReplacingOccurrencesOfString:@"." withString:@""];
            CGFloat fLast = [lastVersion intValue] > 100 ? [lastVersion intValue] : [lastVersion intValue]*10;
            CGFloat fCurrent = [currentVersion intValue] > 100 ? [currentVersion intValue] : [currentVersion intValue]*10;
            if (fLast>fCurrent)
            {
                UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"更新" message:@"有新的版本更新，是否前往更新？" delegate:__self cancelButtonTitle:@"关闭" otherButtonTitles:@"更新", nil];
                alert.tag = 100;
                [alert show];
                
            }
        }
    } fail:^(NSError *error)
    {
        DLog(@"获取失败");
    }];