Storyboard界面传值

//当进行界面切换的（Segue形式）执行
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
    if ([segue.identifier isEqualToString:@"ToMessage"]) {
        MessageViewController *mvc = segue.destinationViewController;
        mvc.username = @"hanmeimei";
    }
}


- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    //执行stroyboard切换动作
    [self performSegueWithIdentifier:@"ToMessage" sender:self];
}

-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    //执行storyboard切换动作
    //[self performSegueWithIdentifier:@"ToMessage" sender:self];
    
    UIStoryboard *sb = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
    MessageViewController *mvc = [sb instantiateViewControllerWithIdentifier:@"Message"];
    mvc.username = @"lilei";
    [self.navigationController pushViewController:mvc animated:YES];
}