填空2`6H4o:D;a,}.u-j;P;Q;x;q
123-98，把98看成7f/c+{6A7[3_6Y:p2U(W-O.X来减，因为写成了3~/g0A-M9x+n，所以要用3R-V8g7{1g,^/A，得8i5}7k*v9N(c.Y*P。2`6H4o:D;a,}.u-j;P;Q;x;q