int (^myBlock) (int a,int b) = ^(int a,int b){ 
    return a+b; 
  }; 

int num = 0; 
  //使用block  
  int (^myBlock) (int a,int b) = ^(int a,int b){ 
    num = a+b; 
    return num; 
  }; 

__block int num = 0; 
  //使用block  
  int (^myBlock) (int a,int b) = ^(int a,int b){ 
    num = a+b; 
    return num; 
  }; 

#pragma mark - 第三方登录 
 
- (void)btnLoginWeiboClicked:(id)sender { 
   
  [_waitCircle startAnimating]; 
   
  [[HSLoginClass createInstance] loginWithPlatformType:ShareTypeSinaWeibo withBlock:^(BOOL success, id message) { 
    if (success) { 
      //跳出登录页面 
      [self dismissViewControllerAnimated:YES completion:^{}]; 
      [_waitCircle stopAnimating]; 
      NSLog(@"新浪微博 %@", message); 
       
    } else { 
    } 
  }]; 
 
  //test statistics 
  dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{ 
     
    NSDate* date = [NSDate date]; 
    NSTimeInterval nowTime = [date timeIntervalSince1970]; 
    NSString* netStatus = (NSString*)[[NSUserDefaults standardUserDefaults] objectForKey:NETSTATUS]; 
    [[HSStatisticsModule statisticsModule] makeSession:nowTime :OPER_IN :@"noid"]; 
    [[HSStatisticsModule statisticsModule] upLoadData:netStatus :[NSString stringWithFormat:@"%f", nowTime]]; 
     
  }); 
 
}