80.00 70.07
105.00 50.04
130.00 25.86
155.00 1.53
180.00 -21.09
205.00 -38.70
230.00 -52.81
255.00 -65.23
280.00 -77.74
305.00 -95.87
330.00 -119.08
355.00 -143.16
380.00 -167.32
405.00 -190.42
430.00 -211.51
455.00 -230.89
480.00 -249.01
505.00 -267.32
居然有负值??