#33016: python 萌新可參考
先建立對照表，操作可用傳入函式的方式比較不會亂：
(變數名稱可能會看得很辛苦，如有建議歡迎指教)
羅馬轉數字用:
w = {"M":1000,"D":500,"C":100,"L":50,"X":10,"V":5,"I":1}
def num(n):
n = n[::-1]
m = w[n[0]]
for i in range(1,len(n)):
if w[n[i]]<w[n[i-1]]:
m-=w[n[i]]
else:
m+=w[n[i]]
return(m)
數字轉羅馬用:
p = [["M",1000],["CM",900],["D",500],["CD",400],["C",100],["XC",90],["L",50],["XL",40],["X",10],["IX",9],["V",5],["IV",4],["I",1]]
def roma(n):
r = ""
for i in p:
x = divmod(n,i[1])
if x[0]!=0:
r += i[0]*x[0]
n = x[1]
return r
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