导致错误的代码:
void Update()
{
if (Input.touchCount > 0)
{
RaycastHit2D hit = Physics2D.Raycast(Camera.main.ScreenToWorldPoint(Input.GetTouch(0).position), Vector2.zero);
if (hit && hit.collider != null && hit.collider.name == "leftTapArea")
{
hit.transform.name = "Hit";
}
}
}
这段代码提示字符串有问题:
RaycastHit2D hit = Physics2D.Raycast(Camera.main.ScreenToWorldPoint(Input.GetTouch(0).position), Vector2.zero);
错误信息:
该错误是由于对象引用为空导致的。NullReferenceException: Object reference not set to an instance of an object leftScript.Update () (at Assets/leftScript.cs:16)