在南大交换生系统首页直接显示GPA和排名，而无需点开申请页面
// ==UserScript==
// @name 南京大学快速查看GPA
// @namespace http://tampermonkey.net/
// @version 2025-01-12
// @description 在南大交换生系统首页直接显示GPA和排名，而无需点开申请页面
// @author Coxine
// @match http://elite.nju.edu.cn/exchangesystem/
// @match http://elite.nju.edu.cn/exchangesystem/*
// @icon https://www.google.com/s2/favicons?sz=64&domain=nju.edu.cn
// @grant none
// @license MIT
// ==/UserScript==
(function () {
'use strict';
const loginDiv = document.querySelector('.login-in');
if (isLogin(loginDiv)) {
console.log('Login, display rank');
loginDiv.removeChild(loginDiv.lastChild);
loginDiv.removeChild(loginDiv.lastChild);
calcRank().then(data => addRank(data, loginDiv));
}
})();
function isLogin(loginDiv) {
return loginDiv !== null;
}
async function calcRank() {
// fetch
const url = "http://elite.nju.edu.cn/exchangesystem/index/create?pid=380"
try {
const response = await fetch(url);
if (!response.ok) {
throw new Error('Network response was not ok');
}
const html = await response.text();
const parser = new DOMParser();
const doc = parser.parseFromString(html, 'text/html');
const gpaElement = doc.querySelector('body > div > div:nth-child(4) > div:nth-child(11) > div:nth-child(3) > div.xm_text_span > span');
const gpa = parseFloat(gpaElement.innerHTML);
const rankPercent = doc.querySelector('input[name="data.pmbfb"]').value;
const rankPercentVal = parseFloat(rankPercent.substring(0, rankPercent.length - 1));
const total = parseInt(doc.querySelector('input[name="data.zyzrs"]').value);
const rank = Math.round(rankPercentVal * total / 100);
return [gpa, rank, total];
} catch (error) {
console.error('Failed to fetch the title:', error);
return null;
}
}
function addRank(data, loginDiv) {
const GPADiv = document.createElement('p');
GPADiv.innerText = `GPA: ${data[0]}`;
const rankDiv = document.createElement('p');
rankDiv.innerText = `排名: ${data[1]}/${data[2]}`;
loginDiv.appendChild(GPADiv);
loginDiv.appendChild(rankDiv);
}