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交作业2015.7.2

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Gussun

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

牢记:python中,使用input(),无论接收到什么输入都是字符串!

# -*- coding: utf-8 -*-

s1=input('请输入你去年的成绩:')
s1=int(s1)
s2=input('请输入你今年的成绩:')
s2=int(s2)
s3=(s2-s1)/s1*100
print('成绩提升了:%.1f%%'%s3)

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