s1 = 72 s2 = 85 r = (s2 - s1)/s1 * 100.0 print('小明提升了：%.1f%%' % r) print('小明提升了：{0:.1f}%'.format(r))
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wenyizhen
s1 = 72 s2 = 85 r = (s2 - s1)/s1 * 100.0 print('小明提升了：%.1f%%' % r) print('小明提升了：{0:.1f}%'.format(r))