i need help jump script c#

Hi !

i tried to build my own jumping script but i failed so please can i use any help ??

anything can help me to build it

Rigidbody2D rigid;

void Start () {
	rigid = GetComponent<Rigidbody2D>();
}


void Update () {
	if(Input.GetKeyDown(KeyCode.Space)){
		Debug.Log("JUMP");
		rigid.velocity = new Vector2 (0f, 10f);
	}
}