JS罗马数字转整数
let obj = {
"I": 1,
"V": 5,
"X": 10,
"L": 50,
"C": 100,
"D": 500,
"M": 1000
}
function fn(v) {
let res = 0;
for (var i = 0; i < v.length; i++) {
let front = v[i];
let back = v[i + 1];
if (obj[back] > o...