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import javax.swing.JFrame;
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import java.awt.event.ActionListener;
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Java ÀíÂÛºÍʵ¼ù:·ºÐÍ11ÔÂ06ÈÕ[תÌù]

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import java.awt.AlphaComposite;
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.geom.AffineTransform;
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