添加一个切换答案按钮，点击可显示/隐藏答案
// ==UserScript==
// @name 中国大学MOOC隐藏答案
// @namespace https://github.com/lcandy2
// @version 1.4
// @description 添加一个切换答案按钮，点击可显示/隐藏答案
// @author lcandy2
// @license MIT
// @match *://www.icourse163.org/learn/*
// @homepage https://github.com/lcandy2/user.js
// @run-at document-end
// @grant none
// ==/UserScript==
function main() {
const targetElement = document.querySelector('.u-learn-moduletitle');
if (targetElement) {
console.log('中国大学MOOC隐藏答案');
console.log(targetElement);
const toggleButton = document.createElement('a');
toggleButton.className = 'j-backList backbtn f-fl f-fc9';
toggleButton.id = 'hideAnswer';
toggleButton.tabIndex = '-1';
toggleButton.textContent = '隐藏答案';
targetElement.appendChild(toggleButton);
let radioInputs, itemsRight, itemsWrong, analysisInfo, scoreElements;
let visibility = true;
toggleButton.addEventListener('click', () => {
if (visibility) {
radioInputs = document.querySelectorAll('input[type="radio"]:checked');
itemsRight = document.querySelectorAll('li.f-cb.checked.right');
itemsWrong = document.querySelectorAll('li.f-cb.checked.wrong');
analysisInfo = document.querySelectorAll('.analysisInfo');
scoreElements = document.querySelectorAll('.score.f-fr');
}
visibility ? visibility = false : visibility = true;
radioInputs.forEach(input => {
visibility ? input.checked = true : input.checked = false;
});
itemsRight.forEach(item => {
visibility ? item.className = 'li f-cb checked right' : item.className = 'f-cb';
});
itemsWrong.forEach(item => {
visibility ? item.className = 'li f-cb checked wrong' : item.className = 'f-cb';
});
analysisInfo.forEach(element => {
visibility ? element.style.display = 'block' : element.style.display = 'none';
});
scoreElements.forEach(element => {
visibility ? element.style.display = 'block' : element.style.display = 'none';
});
toggleButton.textContent = visibility ? '隐藏答案' : '显示答案';
});
}
}
window.onload = main;