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菜鸟求助:在显示器上显示一组图形(图形和要求如下)

x10225506425 发布于 2008-07-02 10:20, 863 次点击
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图1    图2    图3    图4
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#2
x102255064252008-07-02 10:28
补充:要求如下
图形怎么传成这样了啊
4个图形分别为正方形,平行四边形,和两个正反相对的直角三角形

1. 自动切换显示多组图形。
2. 按0—9键分别对应有十种不同颜色显示图形。
3. 按奇数次(a或A)键自动切换显示图形,← 、→键无效。按偶数次(a或A)键取消自动显示,当按←键时显示上组图形,按→键时显示下组图形。
4. 能增加一个或更多新图形显示。
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