s1 = 72 s2 = 85 r = (s2-s1)/s1*100 print("小明成绩提升了%.1f%%"%r) print("小明成绩提升了{0:.1f}%".format(r))
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霸下
s1 = 72 s2 = 85 r = (s2-s1)/s1*100 print("小明成绩提升了%.1f%%"%r) print("小明成绩提升了{0:.1f}%".format(r))