xiaodanzi 发表于 2013-1-29 09:35 
You can alternative to set up a quote from i to theNumberUWant(i->N_i), say 1->3, 2->5, 3->7...... t ...
Yes, it is. It also a way I used to solve the problem, and it works. However, I think it is also a little troublesom and try to find a better way.