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homework

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Ethan-Fanny

#1 Created at ... [Delete] [Delete and Lock User]

s1 = 72 s2 = 85 print('小明成绩今年提高了 %.1f%%' %((s2-s1)/s1*100))

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#2 Created at ... [Delete] [Delete and Lock User]

-- coding: utf-8 --

s1=72 s2=85 r=s2-s1 a=r/72 print('%.1f'%a)

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#3 Created at ... [Delete] [Delete and Lock User]

-- coding: utf-8 --

s1=72 s2=85 r=s2-s1 a=r/0.72 print('%%%.1f'%a)

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#4 Created at ... [Delete] [Delete and Lock User]

s1和s2输出的是字符串,s2-s1程序会报错,刚试过

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#5 Created at ... [Delete] [Delete and Lock User]

上面的回错了。

s1=72 s2=85 r=s2-s1 a=r/0.72 print('小明成绩提升的百分点为:%.1f%%'%a)


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