#import <UIKit/UIKit.h>@class BECheckBox;@interface RootViewController : UIViewController{ BECheckBox *passwordCheck;}@property(nonatomic,retain)BECheckBox *passwordCheck;@end 

#import "RootViewController.h"http://加入頭文件#import "BECheckBox.h"@interface RootViewController ()@end@implementation RootViewController@synthesize passwordCheck;- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil{ self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; if (self) { // Custom initialization } return self;}- (void)viewDidLoad{ [super viewDidLoad]; // Do any additional setup after loading the view.  //隱藏導航條 self.navigationController.navigationBarHidden=YES;  //忘記密碼按鈕 BECheckBox *passCheckBox=[[BECheckBox alloc]initWithFrame:CGRectMake(61, 55, 80, 30)]; [passCheckBox setTitle:@"記住密碼" forState:UIControlStateNormal]; [passCheckBox setTitleColor:[UIColor blackColor] forState:UIControlStateNormal]; passCheckBox.titleLabel.font=[UIFont systemFontOfSize:16]; [passCheckBox setTarget:self fun:@selector(passCheckBoxClick)]; passCheckBox.backgroundColor=[UIColor clearColor]; self.passwordCheck=passCheckBox; [self.view addSubview:self.passwordCheck]; }//記住密碼點擊-(void)passCheckBoxClick{ if ([self.passwordCheck isChecked]) { NSLog(@"記住密碼"); } else { NSLog(@"取消記住密碼"); }}- (void)didReceiveMemoryWarning{ [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated.}