mat = [[0 for c in range(r+1)] for r in range(5)] for i in range(len(mat)): print(mat[i])
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Lua の場合:
mat = {} for r = 1, 5 do mat[r] = {} for c = 1, r do mat[r][c] = 0 end end for i = 1, #mat do print("{"..table.concat(mat[i], ", ").."}") end