作业帮pascal数组中dy:array[1..4] of integer=(0,1,-1,0);这个=（1,0,0-1,
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pascal数组中dy:array[1..4] of integer=(0,1,-1,0);这个=（1,0,0-1,
pascal数组中dy:array[1..4] of integer=(0,1,-1,0);这个=（1,0,0-1,
pascal数组中dy:array[1..4] of integer=(0,1,-1,0);这个=（1,0,0-1,
表示d[1]=0,d[2]=1,d[3]=-1,d[4]=0.
另外,d:array[1..2,1..2]of integer=((0,1),(-1,0));
就是d[1,1]=0,d[1,2]=1,d[2,1]=-1,d[2,2]=0.