s1=72
s2=87
r = ((s2-s1)/s1)*100
print('小明去年成绩为%.2f'% s1)
print('小明今年成绩为%.2f'% s2)
print('小明今年成绩提升了%.2f%%' % r)
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墨迹
s1=72
s2=87
r = ((s2-s1)/s1)*100
print('小明去年成绩为%.2f'% s1)
print('小明今年成绩为%.2f'% s2)
print('小明今年成绩提升了%.2f%%' % r)