UIButton *RightBtn=[UIButton buttonWithType:UIButtonTypeRoundedRect];
[RightBtn setImage:[UIImage imageNamed:@"indexLeftNav"] forState:UIControlStateNormal];
[RightBtn setImage:[UIImage imageNamed:@"indexLeftNav"] forState:UIControlStateHighlighted];
[RightBtn setTitle:@"退出登录" forState:UIControlStateNormal];
RightBtn.frame=CGRectMake(0.0f, 0.0f, 60.0f, 34.0f);
[RightBtn addTarget:self action:@selector(LoginTouchAction:) forControlEvents:UIControlEventTouchUpInside];
UIBarButtonItem *rightItem=[[UIBarButtonItem alloc]initWithCustomView:RightBtn];
self.navigationItem.rightBarButtonItem=rightItem;