@property (strong, nonatomic) LoginViewController *loginViewController;
UIStoryboard *story=[UIStoryboard storyboardWithName:@"Main" bundle:[NSBundle mainBundle]];
self.loginViewController=[story instantiateViewControllerWithIdentifier:@"loginFirstPage"];
[self.navigationController pushViewController:self.loginViewController animated:YES];
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
NSIndexPath *indexPath = [self.tableView indexPathForCell:sender];
UIViewController *destination = [segue destinationViewController];
if ([destination respondsToSelector:@selector(setData:)]) {
[destination setValue:[self.infos[indexPath.row] uid] forKey:@"data"];
}