# -*- coding: utf-8 -*-
s1 = 72
s2 = 85
r = ((s2-s1)/s1) * 100
#占位符
print('小明成绩提升了%.1f%%' % r)
#format
print('小明成绩提升了{0:.1f}%'.format(r))
#f-string
print(f'小明成绩提升了{r:.1f}%')
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# -*- coding: utf-8 -*-
s1 = 72
s2 = 85
r = ((s2-s1)/s1) * 100
#占位符
print('小明成绩提升了%.1f%%' % r)
#format
print('小明成绩提升了{0:.1f}%'.format(r))
#f-string
print(f'小明成绩提升了{r:.1f}%')