Prisms and Pyramids Chart 3d Shapes Worksheets, Printable Math Worksheets, Educational Games For Kids. mathworksheets. Math Worksheets 4 Kids. 39k followers. ... <看更多>

for (int i = 0; i < 7; i++) { for (int j = 0; j < 7; j++) { if ((i < 4 && j >= i + 1 && j < 6 - i) || (i > 3 && j < i && j >= 7 - i)) ... ... <看更多>