计算-N-f;_6O;T,[-l-_,H-C3p3k
100+99+98-97-96-95+……+10+9+8-7-6-5+4+3+2-1-N-f;_6O;T,[-l-_,H-C3p3k
算式:提示-^2b7]+P-N-f;_6O;T,[-l-_,H-C3p3k
=6u9G7P9C'Q6N0E;X1S(_.b0W-N-f;_6O;T,[-l-_,H-C3p3k