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统计hdu教务系统里当前界面的已选学分的辅助工具
// ==UserScript==
// @name Hdu教务系统已选学分统计
// @namespace http://tampermonkey.net/
// @version 0.3
// @description 统计hdu教务系统里当前界面的已选学分的辅助工具
// @author In_The_Wind
// @include http://jxgl.hdu.edu.cn/*
// @grant none
// ==/UserScript==
/*jshint esversion: 6 */
var calCredit = function () {
'use strict';
// Your code here...
let credit = getNowPageCredit();
setShownCredit(credit);
};
var getNowPageCredit = function () {
let credit = 0;
let allclass = document.querySelectorAll("#kcmcgrid > tbody >tr");
for (let i = 1; i <= allclass.length - 2; ++i) {
//注意这个table，i从1开始，到allclass.length-2结束，这里i=0是表头，表尾length-1这里表示table的页面跳转，坑了很长时间才发现
let selected = allclass[i].cells[8].innerText;
if (selected === "已选") {
credit = credit + parseFloat(allclass[i].children[4].innerText)
}
}
return credit;
};
var setShownCredit = function (totalCredit) {
let newtext = document.querySelector("#Table1 > tbody > tr.trtitle > td:nth-child(5)");
newtext.innerText = "当前界面已选学分";
let position = document.querySelector("#Table1 > tbody > tr:nth-child(2) > td:nth-child(5)");
position.innerText = totalCredit;
};
setTimeout(calCredit,1000);
var showTotalCredit = function () {
var tbodyp = document.getElementById("DBGrid");
var tbody = tbodyp.children[0];
var tbodyChildren = tbody.children;
var sum = 0;
for (let i = 1; i < tbodyChildren.length; ++i) {
sum += parseFloat(tbodyChildren[i].children[5].innerText);
}
//var showPositionParent1 = document.getElementsByClassName("location");
//if (showPositionParent1[0].children[0])
// var showPositionParent = showPositionParent1[0].children[0];
//var span = document.createElement("sapn");
//span.innerText = "该学期已修学分:" + sum;
//showPositionParent.appendChild(span);
document.write("该学期已修学分:" + sum);
};
//document.addEventListener("DOMContentLoaded", function () {
setTimeout(showTotalCredit, 8000);
//});