python第三章习题

习题3.1

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earth=50.000
for i in range(10):earth+=0.5
moon=earth*0.165
print("在地球的体重为：{:.3f}kg,在月球上的体重为：{:.3f}kg.".format(earth,moon))

习题3.2

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dayup,dayfactor=1,0.01
for i in range(1,366):if i % 7 in [4,5,6,0]:dayup=dayup*(1+dayfactor)else:dayup=dayup
print("连续学习365天后能力值为：{:.3f}.".format(dayup))

习题3.3

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i=1
dayup,dayfactor=1,0.01
while i<=365:if i%10==0:i+=3else:if i%7 in [4,5,6,0]:dayup=dayup*(1+dayfactor)i+=1
print("能力值为：{:.3f}.".format(dayup))

习题3.4

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number=input("请输入一个五位数：")
huiwen=number[::-1]
A=eval(number[0:])
B=eval(huiwen[0:])
if A==B:print("这个五位数是回文数.")
else:print("它不是回文数.")

习题3.5

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for i in range(2):print("+"," -"*4,"+"," -"*4,"+")for i in range(4):print("|"," "*8,"|"," "*8,"|")
print("+"," -"*4,"+"," -"*4,"+")