提取题目并自动选择答案，支持手动触发
// ==UserScript==
// @name 半自动安全微伴答题脚本
// @namespace http://tampermonkey.net/
// @version 1.2
// @description 提取题目并自动选择答案，支持手动触发
// @author ChatGPT-4o and MapleL
// @match https://weiban.mycourse.cn/*
// @grant GM_xmlhttpRequest
// @license MIT
// ==/UserScript==
(function() {
'use strict';
let lastQuestion;
// 提取页面中的题目
function getQuestion() {
let question = document.querySelector('.quest-stem').innerText.trim();
return question.replace(/^[\d.、]+/, '').trim();
}
// 提取页面中的选项
function getOptions() {
return Array.from(document.querySelectorAll('.quest-option-item .quest-option-top')).map(item => item.innerText.trim());
}
// 查找 GitHub 文本中是否存在该题的答案
function findAnswerInGitHub(question) {
return new Promise((resolve, reject) => {
GM_xmlhttpRequest({
method: 'GET',
url: 'https://raw.githubusercontent.com/pooneyy/WeibanQuestionsBank/refs/heads/main/weibanQuestionBank.md',
onload: function(response) {
if (response.status === 200) {
const content = response.responseText;
const lines = content.split('\n');
const matchedLine = lines.find(line => line.includes(question));
if (matchedLine) {
const answerParts = matchedLine.split('|').slice(3).map(answer => answer.trim()).filter(answer => answer.length > 0);
resolve(answerParts);
} else {
resolve(null);
}
} else {
reject('无法获取题库');
}
},
onerror: function() {
reject('请求错误');
}
});
});
}
// 选择正确答案
function selectOptionByText(answer) {
let options = getOptions();
let correctOption = options.find(option => option.includes(answer));
if (correctOption) {
let optionElement = Array.from(document.querySelectorAll('.quest-option-item')).find(item => item.innerText.includes(correctOption));
if (optionElement) {
optionElement.click();
console.log(`选项: ${correctOption} 被选择`);
return true;
} else {
console.log(`选项: ${correctOption} 不存在，选择失败`);
return false;
}
}
}
// 自动选择正确答案（多选题支持）
async function selectCorrectAnswer() {
let question = getQuestion();
let answers = await findAnswerInGitHub(question);
let errFlag = false;
console.log(`获取到题目：${question}`);
console.log(`获取到答案：${answers}`)
if (answers && answers.length > 0) {
answers.forEach(answer => {
if (!selectOptionByText(answer)) {
errFlag = true;
console.log(`答案 ${answer} 与选项不匹配，已暂停答题`);
}
});
} else {
errFlag = true;
console.log(`未找到题目: ${question} 对应的答案`);
}
if (errFlag == true) {
return false;
} else {
return true;
}
}
async function startAutoAnswer() {
let selectStatus = await selectCorrectAnswer();
if (selectStatus == true) {
lastQuestion = getQuestion();
setTimeout(() => {
const buttons = document.querySelectorAll('button .mint-button-text');
let nextButton = Array.from(buttons).find(button => button.textContent.includes("下一题"));
if (nextButton) {
nextButton.click();
console.log('延迟0.5秒后点击下一题');
const observer = new MutationObserver((mutationsList, observer) => {
console.log('正在检测题目更新');
let newQuestion = getQuestion();
if (newQuestion !== lastQuestion) {
console.log('检测到题目更新，即将延迟0.5秒后继续自动答题');
observer.disconnect();
setTimeout(() => {
startAutoAnswer();
console.log('继续自动答题');
}, 500);
}
});
observer.observe(document.querySelector('.quest-stem').parentNode, { childList: true, subtree: true, characterData: true });
console.log('开始检测题目更新');
} else {
console.log('未找到下一题按钮');
}
}, 500);
} else {
console.log(`题目: ${getQuestion()} 自动答题失败`);
alert('未找到题目对应的答案，请手动作答');
}
}
// 创建并插入“开始自动答题”按钮
function createAnswerButton() {
let button = document.createElement('button');
button.innerText = '开始自动答题';
button.style.position = 'fixed';
button.style.top = '10px';
button.style.right = '10px';
button.style.zIndex = '1000';
button.style.backgroundColor = '#4CAF50';
button.style.color = 'white';
button.style.padding = '10px';
button.style.border = 'none';
button.style.borderRadius = '5px';
button.style.cursor = 'pointer';
button.addEventListener('click', function() {
console.log("尝试自动答题");
startAutoAnswer();
});
document.body.appendChild(button);
}
// 等待页面加载完成并创建按钮
window.addEventListener('load', function() {
createAnswerButton();
});
})();