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清除雨课堂试卷做题痕迹（仅UI变更，不涉及雨课堂后台数据），便于复习。
目前为
// ==UserScript==
// @name 清除雨课堂做题痕迹
// @namespace http://tampermonkey.net/
// @version 1.0.0.RELEASE
// @description 清除雨课堂试卷做题痕迹（仅UI变更，不涉及雨课堂后台数据），便于复习。
// @author 冰镇杨梅瑞纳冰YYDS
// @match https://examination.xuetangx.com/*
// @icon https://www.google.com/s2/favicons?sz=64&domain=xuetangx.com
// @grant none
// @license DONT FUCKING CARE
// ==/UserScript==
(function() {
'use strict';
var checkDiv = document.createElement("div");
var rightAnswer;
var button;
checkDiv.setAttribute("id","test");
document.body.appendChild(checkDiv);
var testBlock = document.getElementById("test");
testBlock.style.height="auto";
testBlock.style.width="auto";
testBlock.style.position="fixed";
testBlock.style.top=0;
testBlock.style.right=0;
testBlock.style.zindex=1000;
testBlock.innerHTML+='<div style="margin:60px; z-index:1000"><button id="start" onClick="ErasAll()" style=\"background-color:#4286F3; padding:15px; border-radius:5px;border:0;color:white\">清除做题痕迹</button></div>'
// Your code here...
window.ErasAll = function(){
alert("🐵你的答案痕迹已被清除，查看答案点击对应题目的查看答案。题目处理可能需要等待。");
// 删除所有蓝色选项按钮
var isChecked = document.getElementsByClassName('el-radio');
for(let i=0;i<isChecked.length;i++){
isChecked[i].className="el-radio is-disabled";
}
//隐藏所有正确答案
rightAnswer = document.getElementsByClassName("item-footer");
for(let g=0;g<rightAnswer.length;g++){
rightAnswer[g].style.display="none";
}
//新增显示答案
var questions = document.getElementsByClassName("item-body");
for(let t=0;t<questions.length;t++){
var num = t;
questions[t].innerHTML+='<button id="'+t+'" class="ShowAnswerBtn" style="background-color: #4286F3; padding:15px; border-radius:5px;border:0;color:white" onClick="ShowAnswer('+t+')"><p>显示答案</p></button><a id="num" style="display:none;">'+num+'</a>';
}
var myTextAnswer = document.getElementsByClassName("subject-answer");
for(let i=0;i<myTextAnswer.length;i++){
myTextAnswer[i].innerHTML="你的答案已被脚本吃掉了";
}
for(let j=0;j<50;j++){
//删除所有的标记（多删几次）
var rightAnswerMark = document.getElementsByClassName("dot");
for(let i=0;i<rightAnswerMark.length;i++){
let dotParent = rightAnswerMark[i].parentNode;
dotParent.removeChild(rightAnswerMark[i]);
}
}
}
window.ShowAnswer=function(num){
rightAnswer[num].style.display="block";
}
})();