摘要：
enum { UP, LEFT, DOWN, RIGHT,};void hilbert(int level,int direction=UP){ if (level==1) { switch (direction) { case LEFT: move(RIGHT); /* move() could draw a line in... */ mov... 阅读全文
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摘要：
enum { UP, LEFT, DOWN, RIGHT,};void hilbert(int level,int direction=UP){ if (level==1) { switch (direction) { case LEFT: move(RIGHT); /* move() could draw a line in... */ mov... 阅读全文
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