Help with picking up an item(flashlight)

Hi my friends an i are new to unity and were worknig on a game and one of the parts of the game is to pick up the flashlight and the game starts and yeah im new to coding as well and i was wonding if anyone could write or send me the code to do so because im am the coder in the game and yeah i know its kinda cheap to use someone elses code but im kinda shot on time for this part of the game
many thanks
~SkIlZzz

Nobody here is going to write your code for you. But the following should give you a basic idea of what to do.

Item item;

void Update()
{
    if(item != null && Input.GetButtonDown("pickup"))
    {
        // pickup your item, add it to inventory, or disable the item's gameobject...
        // whatever you do when you pick something up
    }
}

void OnTriggerEnter(Collider other)
{
    Item i = other.GetComponent(typeof(Item));
    if (i != null)
        item = i;
}

void OnTriggerExit(Collider other)
{
    Item i = other.GetComponent(typeof(Item));
    if (item == i)
        item = null;
}