dim se as string
picture1.print tab(35);"九九乘法表"
picture1.print tab(35);"_________"
for i=1to 9
  for j=1to9
   se = i&"*"&j&"="&i*j
   picture1.print tab（(j-1)*+1);se;
next j
end sub
怎样该为下三角形呢？