// Create a rotation
//创建一个旋转
var rotation = Quaternion.identity;
// Assign a rotation 30 degrees around the y axis
//绕y轴，指定一个30度旋转角
rotation.eulerAngles = Vector3(0, 30, 0);
// print the rotation around the y-axis
//打印绕y轴的旋转角度
print(rotation.eulerAngles.y);
