objective-c - tabBarItem的標題

Question

 foodViewController *food =[[foodViewController alloc]init];
    food.view.backgroundColor=[UIColor redColor];
    food.tabBarItem.title=@"觅食";
    
    food.tabBarItem= [[UITabBarItem alloc] initWithTabBarSystemItem:UITabBarSystemItemSearch tag:1];

標題不變 怎麼解決 想用UITabBarSystemItemSearch 但是要怎麼修改標題呢?