06级及之前年级:
if (成绩>=90) then 绩点=4
elseif (85<=成绩<90) then 绩点=3.7
elseif (82<=成绩<85) then 绩点=3.3
elseif (78<=成绩<82) then 绩点=3
elseif (75<=成绩<78) then 绩点=2.7
elseif (72<=成绩<75) then 绩点=2.3
elseif (68<=成绩<72) then 绩点=2
elseif (64<=成绩<68) then 绩点=1.5
elseif (60<=成绩<64) then 绩点=1
else 绩点=0