登录 ，注册 界面实现 代码

//1、账号标签

UILabel *idLalel = [[UILabel alloc] initWithFrame:CGRectMake(30, 100, 70, 30)];

//2、设置?文本控制相关的属性

idLalel.text = @"账号：";

[self addSubview:idLalel];

[idLalel release];

//1、密码标签

UILabel *passLalel = [[UILabel alloc] initWithFrame:CGRectMake(30, 200, 70, 30)];

//2、设置?文本控制相关的属性

passLalel.text = @"密码：";

[self addSubview:passLalel];

[passLalel release];

//账号输入框

UITextField *idTexfield = [[UITextField alloc] initWithFrame:CGRectMake(100, 100, 160, 30)];

//设置边界属性

idTexfield.tag = 1001;

idTexfield.borderStyle = UITextBorderStyleBezel;

idTexfield.placeholder = @"请输入账号...";

idTexfield.delegate = self;

[self addSubview:idTexfield];

[idTexfield release];

//密码输入框

UITextField *passTexfield = [[UITextField alloc] initWithFrame:CGRectMake(100, 200, 160, 30)];

//设置边界属性

passTexfield.tag = 1002;

passTexfield.borderStyle = UITextBorderStyleBezel;

passTexfield.secureTextEntry = YES;   //以圆点形式输入

passTexfield.keyboardType =  UIKeyboardTypeNumberPad;//键盘形式

passTexfield.returnKeyType = UIReturnKeyNext;

passTexfield.placeholder = @"请输入密码...";

passTexfield.delegate = self;

[self addSubview:passTexfield];

[passTexfield release];

//放置按钮

//登录

UIButton *loginButton = [UIButton buttonWithType:UIButtonTypeSystem];

loginButton.frame = CGRectMake(30, 250, 60, 30);

[loginButton setTitle:@"登录" forState:UIControlStateNormal];

//添加事件

[loginButton addTarget:self action:@selector(loginAction:)

forControlEvents:UIControlEventTouchUpInside];

[self addSubview:loginButton];

//注册

UIButton *registerButton = [UIButton buttonWithType:UIButtonTypeSystem];

registerButton.frame = CGRectMake(120, 250, 60, 30);

[registerButton setTitle:@"注册" forState:UIControlStateNormal];

// [loginButton addTarget:self action:@selector(login:)

//       forControlEvents:UIControlEventTouchUpInside];

[self addSubview:registerButton];

//密码找回

UIButton *regetButton = [UIButton buttonWithType:UIButtonTypeSystem];

regetButton.frame = CGRectMake(220, 250, 60, 30);

[regetButton setTitle:@"密码找回" forState:UIControlStateNormal];

// [loginButton addTarget:self action:@selector(login:)

//       forControlEvents:UIControlEventTouchUpInside];

[self addSubview:regetButton];