#Tempter
TempterStr = input("")
if TempterStr[-1] in ["f","F"]:
C = (eval(TempterStr[0:-1])-32)/1.8
print("{:.2f}C".format(C))
elif TempterStr[-1] in ["c","C"]:
F = eval(TempterStr[-1])*1.8+32
print("{:.2f}F".format(F))
else:
print("输入格式错误")
lzz
输入格式错误
运用到了索引:-1索引表示最后一个字符
[a:b]表示从a到b-1的字符
eval是用来去除最外面的引号