-(void)appVersion{    //self.appUrlInAppStore为应用在AppStore的完整url地址    if (!self.appUrlInAppStore) {        return ;    }    NSURL *url = [NSURL URLWithString:self.appUrlInAppStore];    NSURLRequest *request = [NSURLRequest requestWithURL:url];    [NSURLConnection connectionWithRequest:request delegate:self];}-(void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data{    NSError *error;    id response = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingAllowFragments error:&error];    NSDictionary *appInfo = (NSDictionary *)response;    NSArray *infoContent = appInfo[@"results"];    //最新版本号    NSString *newestVersion = [infoContent[0] objectForKey:@"version"];    NSLog(@"最新的版本号：%@",newestVersion);    //获取当前版本号    NSDictionary *infoDic = [[NSBundle mainBundle] infoDictionary];    NSString *currentAppVersion = infoDic[@"CFBundleShortVersionString"];    NSLog(@"app现在的版本号：%@",currentAppVersion);        //根据两个版本号是不是一致去提示用户升级}