{"html":"<!DOCTYPE html>\r\n<html>\r\n    <head>\r\n        <meta charset=utf-8>\r\n    </head>\r\n    <body>\r\n    \t\r\n        <script type=\"text/javascript\">\r\n            const _isPalindrome = str => {\r\n                // 补全代码\r\n                let min = 0\r\n    let max = str.length - 1\r\n    console.log(max, str[max] === str[min])\r\n    let flag = false\r\n    while (min <= max) {\r\n        if (str[min] === str[max]) {\r\n            flag = true\r\n        } else {\r\n            flag = false\r\n        }\r\n        min++\r\n        max--\r\n    }\r\n    return flag\r\n            }\r\n        </script>\r\n    </body>\r\n</html>","css":"/* html, body {\\n\\twidth: 100%;\\n\\theight: 100%;\\n\\tmargin: 0;\\n\\tpadding: 0;\\n} */","js":"// 请在这里输入代码"}