unity scale循环大小

float rate = .5f;

float maxScale = 1.2f;

float minScale = .8f;

float scale = (Mathf.Sin(Time.time * (rate * 2 * Mathf.PI)) + 1f)/2f;

scale = Mathf.Lerp (minScale, maxScale, scale);

transform.localScale = new Vector3(scale,scale,scale);