隐藏键盘经典写法

只需要点击键盘的 return键 即可

- (IBAction)nameTextField_didendonexist:(id)sender

{

    [self.psw becomeFirstResponder];

}

- (IBAction)pawTextField_didendonexist:(id)sender

{

    [sender resignFirstResponder];

    

    [self.loginBtbsendActionsForControlEvents:UIControlEventTouchUpInside];

}

- (IBAction)btnClick:(id)sender

{

    NSLog(@"denglu");

}