delegate

(1)

#import <UIKit/UIKit.h>
#import "CellData.h"



@protocol AddViewControllerDelegate <NSObject>

- (void)setCellData:(CellData *)data;

@end


@interface AddViewController : UIViewController

@property (weak, nonatomic) id <AddViewControllerDelegate> delegate;

@end
#import "AddViewController.h"
     [self.delegate setCellData:_data];

#import "AddViewController.h"
 [self.delegate setCellData:_data];

(2)

#import <UIKit/UIKit.h>
#import "AddViewController.h"



@interface MyViewController : UIViewController<AddViewControllerDelegate>


@end

#pragma mark-- addview delegate
- (void)setCellData:(CellData *)data;
{
    //db insert
    [DataBase insert: data];
    self.title = [NSString stringWithFormat:@"所有用户（%d）",[DataBase getTotalNumbers]];
    [self updateArrayOfCharacters];
    [self.myTableView reloadData];
}