// ==UserScript==
// @name         wuxuejiaoyu
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  个人脚本!
// @author       You
// @match        http://learning.wuxuejiaoyu.cn/openlearning/console/*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=wuxuejiaoyu.cn
// @grant        none
// @license      none
// @downloadURL none
// ==/UserScript==

(function() {
    'use strict';

    // Your code here...
    var inputbtn = document.createElement('input');
    inputbtn.id="btn";
    inputbtn.type="button";
    inputbtn.value="获取";
    inputbtn.style.width="100px";
    inputbtn.style.height="50px";
    inputbtn.style.backgroundColor="green";
    inputbtn.style.border='none';
    inputbtn.onclick = getanswer;
    document.body.appendChild(inputbtn);

    var inputbtn2 = document.createElement('input');
    inputbtn2.id="btn2";
    inputbtn2.type="button";
    inputbtn2.value="输出";
    inputbtn2.style.width="100px";
    inputbtn2.style.height="50px";
    inputbtn2.style.backgroundColor="red";
    inputbtn2.style.border='none';
    inputbtn2.style.marginLeft = "50px"
    inputbtn2.onclick = setanswer;
    document.body.appendChild(inputbtn2);


    function getanswer(){
        var child = self.parent['w_main'].document.getElementById('cboxIframe').contentWindow.document.getElementById('w_lms_content').contentWindow.document.getElementById('w_lms_sco').contentWindow.document.querySelectorAll('[style="color:darkred;font-size:10pt"]')

        var index = 0;

        for(var i = 0;i < child.length;i++){
            if(child[i].innerText.length != 6){
                sessionStorage.setItem(index,child[i].innerText.substring(child[i].innerText.indexOf('：') + 1 ,child[i].innerText.indexOf(']')));
                index++;
            }
        }
        alert("已获取答案");
        console.log(sessionStorage);
    }

    function setanswer(){
        var child = self.parent['w_main'].document.getElementById('cboxIframe').contentWindow.document.getElementById('w_lms_content').contentWindow.document.getElementById('w_lms_sco').contentWindow.document.getElementsByName('w_right')[0].contentWindow.document.querySelectorAll('[optiontype="radio"],[isitt001input="1"]');
        for(var i = 0;i < child.length;i++){
            if(child[i].tagName == "INPUT"){
                child[i].value = sessionStorage.getItem(i);
            }else{
                child[i].querySelector('[value="'+sessionStorage.getItem(i)+'"]').click();
            }
        }
    }
})();