Java双缓冲动画\DrawBird.java ..............\GameFrame.java ..............\images\bird0.png ..............\......\bird1.png ..............\......\bird2.png ..............\......\bird3.png ..............\......\bird4.png ..............\......\bird5.png ..............\......\bird6.png ..............\......\bird7.png ..............\......\bird8.png ..............\......\bird9.png ..............\images Java双缓冲动画