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作业打卡

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大侠灬请留步

#1 Created at ... [Delete] [Delete and Lock User] 
height = 1.83
weight = 72
bmi = weight / (height * height)
if bmi < 18.5:
    print("BMI为%.2f" % bmi + '，过轻')
elif bmi < 25:
    print("BMI为%.2f" % bmi + "，正常")
elif bmi <28:
    print("BMI为%.2f" % bmi + '，过重')
elif bmi < 32:
    print("BMI为%.2f" % bmi + '，肥胖')
else :
    print("BMI为%.2f" % bmi + '，严重肥胖')

用户5611034331

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

*+*这个加号是用来拼接字符串的吗？   为什么没有这个*+*就报错了？

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