master

分支 (1)

管理

管理

master

Leetcode-js
/
13.罗马数字转整数.html

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>

<body>
    <script>
        var romanToInt = function (s) {
            var a = 0;
            var obj = {
                I: 1,
                V: 5,
                X: 10,
                L: 50,
                C: 100,
                D: 500,
                M: 1000
            }
            for (var i = 0; i < s.length; i++) {
                if (i == s.length - 1) {
                    a = a + obj[s[s.length - 1]];
                    break;
                }
                if (obj[s[i]] < obj[s[i + 1]]) {
                    a += obj[s[i + 1]] - obj[s[i]];
                    i++;
                } else {
                    a += obj[s[i]];
                }
            }
            return a;
        };
        alert(romanToInt("I"));
    </script>
</body>

</html>