s1 = 72
s2 = 85
print('小明的成绩提升了%.2f%%' % ((s2-s1)/s1*100))
print('{0}的成绩提升了{1:.2f}%'.format('小明',(s2-s1)/s1*100))
print(f'小明的成绩提升了{(s2-s1)/s1*100:.2f}%')
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Aoki
s1 = 72
s2 = 85
print('小明的成绩提升了%.2f%%' % ((s2-s1)/s1*100))
print('{0}的成绩提升了{1:.2f}%'.format('小明',(s2-s1)/s1*100))
print(f'小明的成绩提升了{(s2-s1)/s1*100:.2f}%')