摘要:
package jisuanqi;import java.awt.*;public class MyFrame extends Frame{ //继承Frame类 public MyFrame() { super("第一个图形界面"); ... 阅读全文
摘要:
DescriptionJohn von Neumann, b. Dec. 28, 1903, d. Feb. 8, 1957, was a Hungarian-American mathematician who made important contributions to th... 阅读全文