unity 修改transform.rotation的两种方法

transform.localPosition和transform.localScale都是直接赋值三元数，给旋转赋值需要用 
　　方法一： 
　　xxx.transform.localEulerAngles = new Vector3 (0.0f,0.0f,0.0f); 
　　方法二： 
　　 xxx.transform.rotation=Quaternion.Euler(0.0f,0.0f,0.0f);