虽然我不懂音乐，但这个看起来是八分休止符http://baike.baidu.com/link?url=yXqvPWoxlvV2uWi_XFiN7l74bJYX0mAhAadphXD5a7cO7NeFEGQ7tFQeqJTm4zuAKum2Eq5L_1IW-5IumLUK2SqMqogC9gtNMsKU6oe1vIa0Hit63TRbxD9xemZfh32W
