class Solution: def romanToInt(self, s): """ :type s: str :rtype: int """ d={'I':1,'V':5,'X':10,'L':50,'C':100,'D':500,'M':1000} sum=0 for i in range(len(s)-1): a=s[i] b=s[i+1] if d[a]<d[b]: sum-=d[a] else: sum+=d[a] sum+=d[s[-1]] return sum
class Solution: def romanToInt(self, s): """ :t
阅读背景：
python 算法：罗马数字转化
来源：互联网
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