(图一)正常的图像

(图二)Alpha(Opacity=60)

(图三)Alpha(Opacity=0, FinishOpacity=100, Style=1, StartX=0, StartY=0, FinishX=260, FinishY=200)

(图四)Alpha(Opacity=100, FinishOpacity=0, Style=2)

(图五)Alpha(Opacity=10, FinishOpacity=100, Style=2)

(图六)Alpha(Opacity=100, FinishOpacity=0, Style=3)