s1=72
s2=85
r=s2/s1*100-100
'%s成绩提升了%.1f%%' %('小明',r)
print('{0}成绩提升了{1:.1f}%' .format('小明',r))
name='小明'
print(f'{name}成绩提升了{r:.1f}%')
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Wynne
s1=72
s2=85
r=s2/s1*100-100
'%s成绩提升了%.1f%%' %('小明',r)
print('{0}成绩提升了{1:.1f}%' .format('小明',r))
name='小明'
print(f'{name}成绩提升了{r:.1f}%')