20//Title, it is necessary to ensure that at least one of the title and icon has a value, otherwise it is invalid (when there is an icon, the icon is displayed first, and only when there is no title, the text is displayed)
29@property (nonatomic,assign) CGPoint anchor;//锚点,默认为(0.5,1.0),即中下方 Anchor point, default is (0.5, 1.0), which is located in the middle and lower part
30
31@property (nonatomic,assign) floatangle;//icon图标的旋转角度[0,360), 正北为0度,顺时针方向 The rotation angle of the icon is [0360], with 0 degrees for true north and clockwise direction