摘要:
package abc;import java.awt.BorderLayout;import java.awt.Color;import java.awt.Component;import java.awt.Container;import java.awt.FileDialog;import java.awt.FlowLayout;import java.awt.Font;import java.awt.GraphicsEnvironment;import java.awt.GridBagConstraints;import java.awt.GridLayout;import java. 阅读全文