{"html":"<!DOCTYPE html>\n<html>\n\n<head>\n    <meta charset=\"UTF-8\">\n    <style>\n       /* 填写样式 */\n    </style>\n</head>\n\n<body>\n    <!-- 填写标签 -->\n    <script type=\"text/javascript\">\n        // 填写JavaScript\n        function base10(str) {\n            let target = 0\n            for(let i = 0; i < str.length; i ++) {\n                target += str[i] * Math.pow(2, (str.length - 1 - i))\n            }\n            return target\n\n}\n    </script>\n</body>\n\n</html>","css":"","js":""}