摘要：
1 package test; 2 3 import java.awt.Container; 4 import java.awt.Font; 5 import java.io.File; 6 import java.util.EmptyStackException; 7 import java.util.Iterator; 8 import java.util.Stack; 9 10 import javax.swing.Icon;11 import javax.swing.ImageIcon;12 import javax.swing.JButton;13 import javax.sw.. 阅读全文