文件名称:背景和鼠标
介绍说明－－下载内容均来自于网络，请自行研究使用
可以在一般背景下画图，也可以获取鼠标位置-in the general context of the class, but also access to the mouse position
(系统自动生成,下载前可以参看下载内容)
下载文件列表
ch19
....\App19_1
....\.......\App19_1.class
....\.......\App19_1.htm
....\.......\App19_1.java
....\App19_10
....\........\App19_10.htm
....\........\App19_10.java
....\........\小龍貓.mid
....\........\小龙猫.mid
....\........\狮子王.mid
....\........\獅子王.mid
....\........\美人魚.mid
....\........\美人鱼.mid
....\App19_2
....\.......\App19_2.htm
....\.......\App19_2.java
....\App19_3
....\.......\App19_3.htm
....\.......\App19_3.java
....\App19_4
....\.......\App19_4.htm
....\.......\App19_4.java
....\App19_5
....\.......\App19_5.htm
....\.......\App19_5.java
....\App19_6
....\.......\App19_6.htm
....\.......\App19_6.java
....\App19_7
....\.......\App19_7.htm
....\.......\App19_7.java
....\App19_8
....\.......\App19_8.class
....\.......\App19_8.htm
....\.......\App19_8.java
....\App19_9
....\.......\App19_9.class
....\.......\App19_9.htm
....\.......\App19_9.java
....\App19_1
....\.......\App19_1.class
....\.......\App19_1.htm
....\.......\App19_1.java
....\App19_10
....\........\App19_10.htm
....\........\App19_10.java
....\........\小龍貓.mid
....\........\小龙猫.mid
....\........\狮子王.mid
....\........\獅子王.mid
....\........\美人魚.mid
....\........\美人鱼.mid
....\App19_2
....\.......\App19_2.htm
....\.......\App19_2.java
....\App19_3
....\.......\App19_3.htm
....\.......\App19_3.java
....\App19_4
....\.......\App19_4.htm
....\.......\App19_4.java
....\App19_5
....\.......\App19_5.htm
....\.......\App19_5.java
....\App19_6
....\.......\App19_6.htm
....\.......\App19_6.java
....\App19_7
....\.......\App19_7.htm
....\.......\App19_7.java
....\App19_8
....\.......\App19_8.class
....\.......\App19_8.htm
....\.......\App19_8.java
....\App19_9
....\.......\App19_9.class
....\.......\App19_9.htm
....\.......\App19_9.java