【綜合練習】老鼠走迷宮：實作 2 - 解答 | 程式專案

{"id":576386,"student_id":2589,"content":"{\"html\":\"\u003c!DOCTYPE html\u003e\\n\u003chtml\u003e\\n\u003chead\u003e\\n\\t\u003ctitle\u003eDocument\u003c/title\u003e\\n\u003c/head\u003e\\n\u003cbody\u003e\\n    \u003cdiv id=\\\"question\\\"\u003e\\n        \u003cp\u003e請依照以下步驟進行綜合練習：\u003c/p\u003e\\n        \u003cp\u003e1. 搭配過去學過的演算法知識（暴力破解），來閱讀練習頁面中的 JavaScript。\u003c/p\u003e\\n        \u003cp\u003e2. 修改練習頁面中的 JavaScript，讓執行後網頁上的顯示文字與下方相同。\u003c/p\u003e\\n    \u003c/div\u003e\\n    \u003cdiv id=\\\"screenshot\\\"\u003e\\n        \u003cp\u003e題目：\u003c/p\u003e\\n        \u003cdiv id=\\\"log\\\"\u003eloading...\u003c/div\u003e\\n    \u003c/div\u003e\\n    \u003cdiv id=\\\"screenshot\\\"\u003e\\n        \u003cp\u003e解答：\u003c/p\u003e\\n        \u003cdiv id=\\\"code\\\"\u003eloading...\u003c/div\u003e\\n    \u003c/div\u003e\\n\u003c/body\u003e\\n\u003c/html\u003e\",\"css\":\"* {\\n    margin: 0;\\n    padding: 0;\\n    box-sizing: border-box;\\n    font-size: 16px;\\n}\\n\\nhtml, body {\\n    width: 100%;\\n    height: 100%;\\n    background-color: #333;\\n    padding: 10px;\\n}\\n\\np {\\n    color: white;\\n    margin-bottom: 10px;\\n}\\n\\n#log {\\n    color: #03F501;\\n    padding: 10px;\\n    border: 1px solid white;\\n    border-radius: 5px;\\n}\\n\\n#code {\\n    color: #03F501;\\n    padding: 10px;\\n    border: 1px solid white;\\n    border-radius: 5px;\\n    overflow-x: scroll;\\n}\\n\\n#question {\\n    height: 130px;\\n    border: 1px solid white;\\n    padding: 20px;\\n    margin-bottom: 10px;\\n}\\n\\n#screenshot {\\n    border: 1px solid white;\\n    padding: 20px;\\n    margin-bottom: 10px;\\n}\",\"js\":\"function bruteForceCrack(password) {\\n  const characters = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';\\n  const passwordLength = password.length;\\n  function generatePermutations(prefix, length) {\\n    if (length === 0) {\\n      if (prefix === password) {\\n        console.log(`Password cracked: ${prefix}`);\\n      }\\n      return;\\n    }\\n    for (let i = 0; i \u003c characters.length; i++) {\\n      const currentChar = characters[i];\\n      const newPrefix = prefix + currentChar;\\n      generatePermutations(newPrefix, length - 1);\\n    }\\n  }\\n  for (let i = 1; i \u003c= passwordLength; i++) {\\n    generatePermutations('', i);\\n  }\\n}\\n\\nconst targetPassword = 'abcd';\\nbruteForceCrack(targetPassword);\\n\"}","created_at":"2023-07-28T11:10:38.765+08:00","updated_at":"2023-07-31T13:52:49.809+08:00","name":"【綜合練習】老鼠走迷宮：實作 2 - 解答","language":"web","screenshot":{"url":null},"parent_id":576385,"plugin":"(function () {\n    if (!console) {\n        console = {};\n    }\n    var old = console.log;\n    var logger = document.getElementById('log');\n    logger.innerHTML = \"\"\n    console.log = function (message) {\n        if (typeof message == 'object') {\n            logger.innerHTML += (JSON \u0026\u0026 JSON.stringify ? JSON.stringify(message) : String(message)) + '\u003cbr /\u003e';\n        } else {\n            logger.innerHTML += message + '\u003cbr /\u003e';\n        }\n    }\n})();\n\ndocument.querySelector(\"#code\").innerHTML = `\u003cpre\u003e// 暴力破解密碼函式\nfunction bruteForceCrack(password) {\n  const characters = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789'; // 密碼可能包含的字符集合\n  const passwordLength = password.length; // 密碼的長度\n  function generatePermutations(prefix, length) {\n    if (length === 0) { // 如果生成的字串長度為 0，表示已生成完畢\n      if (prefix === password) { // 檢查生成的字串是否與目標密碼相同\n        console.log(\\`Password cracked: \\${prefix}\\`); // 若相同，輸出破解的密碼\n      }\n      return;\n    }\n    for (let i = 0; i \u003c characters.length; i++) { // 遍歷字符集合\n      const currentChar = characters[i]; // 取出當前字符\n      const newPrefix = prefix + currentChar; // 生成新的字串，加上當前字符\n      generatePermutations(newPrefix, length - 1); // 遞迴生成下一個字符\n    }\n  }\n  for (let i = 1; i \u003c= passwordLength; i++) { // 從長度為 1 開始生成字串\n    generatePermutations('', i); // 呼叫生成字串的遞迴函式\n  }\n}\n\nconst targetPassword = 'abcd'; // 目標密碼\nbruteForceCrack(targetPassword); // 呼叫暴力破解密碼函式\n\u003c/pre\u003e`\n","description":null,"note":null,"status":"public","like_student_ids":[],"is_featured":false,"views":30,"hashid":"ej9s9j6jj","is_content_changed":false,"review_status":"unsubmitted","submitted_at":null,"reviewed_at":null,"advise":null,"is_deleted":false}