第三周

import turtle
turtle.setup(650, 350, 200, 200)
turtle.penup()
turtle.fd(-250)
turtle.pendown()
turtle.pensize(25)
turtle.pencolor("purple")
turtle.seth(-40)
for i in range(4):
turtle.circle(40,80)
turtle.circle(-40,80)
turtle.circle(40,80/2)
turtle.fd(40)
turtle.circle(16,180)
turtle.fd(402/3)
turtle.done()
TempStr=input("请输入带格式的温度值：")
if TempStr[-1] in ['C','c']:
F=(eval(TempStr[0:-1])+32)1.8
print("转化后温度值为：{:.2f}F".format(F))
elif TempStr[-1] in ['f','F']:
C=(eval(TempStr[0:-1])-32)/1.8
print("转化后温度值为：{:.2f}C".format(C))
else:
print("输入格式错误。")
TempStr=input("请输入带格式的温度值：")
if TempStr[0] in ['C','c']:
F=(eval(TempStr[1:])+32)1.8
print("转化后温度值为：F{:.2f}".format(F))
elif TempStr[0] in ['f','F']:
C=(eval(TempStr[1:])-32)/1.8
print("转化后温度值为：C{:.2f}".format(C))
else:
print("输入格式错误。")
TempStr=input("请输入带格式的温度值：")
if TempStr[-2:] in ['Ce']:
F=(eval(TempStr[0:-2])+32)1.8
print("转化后温度值为：{:.2f}Fa".format(F))
elif TempStr[-2:] in ['Fa']:
C=(eval(TempStr[0:-2])-32)/1.8
print("转化后温度值为：{:.2f}Ce".format(C))
else:
print("输入格式错误。")