帮助你快速计算绩点
// ==UserScript==
// @name SEUGPAHelper
// @description 帮助你快速计算绩点
// @version 0.1.0
// @match *://ehall.seu.edu.cn/jwapp/sys/cjcx/*
// @run-at document-end
// @namespace https://greasyfork.org/users/730743
// ==/UserScript==
(function () {
'use strict';
function loadMyScript() {
if (document.querySelector('.bh-advancedQuery-totalNum') === null || document.querySelector('.bh-advancedQuery-totalNum').firstChild === null) { setTimeout(loadMyScript, 500); }
else {
alert('使用方法: 本插件计算所有列表中显示出来的绩点。若想要计算所有课程绩点，请选择务必全部，并务必在右下角选择每页显示100。\n\n使用技巧：在上一步基础上，使用高级搜索，筛选掉所有任选课程，避免课程数超出100导致无法计算。\n\n本插件不计算绩点的课程有军训、中西哲学智慧、中国戏曲艺术、吴健雄学院CPP课，所有任选课，所有通过/不通过课程')
function getGrade(grade) {
if (grade === '优') return 95;
if (grade === '良') return 85;
if (grade === '中') return 75;
if (grade === '合格') return 65;
if (grade === '不合格') return 59;
else return parseFloat(grade);
}
function getGPA(grade) {
if (grade <= 100 && grade >= 96) return 4.8;
if (grade >= 93) return 4.5;
if (grade >= 90) return 4.0;
if (grade >= 86) return 3.8;
if (grade >= 83) return 3.5;
if (grade >= 80) return 3.0;
if (grade >= 76) return 2.8;
if (grade >= 73) return 2.5;
if (grade >= 70) return 2.0;
if (grade >= 66) return 1.8;
if (grade >= 63) return 1.5;
if (grade >= 60) return 1.0;
else return 0;
}
function judgeLesson(lesson) {
let lessonName = lesson.children[2].firstChild.innerHTML;
let lessonFlag = lesson.children[6].firstChild.innerHTML;
let lessonNotAllowed = ['军训', '中国戏曲艺术', '中西哲学智慧', '算法与程序设计'];
if (lessonFlag === '任选') return false;
if (lessonNotAllowed.indexOf(lessonName) !== -1) return false;
return true;
}
function calclulate() {
let totalNum = parseInt(document.querySelector('.bh-advancedQuery-totalNum').firstChild.innerHTML);
let calclulatedNum = 0;
let totalGPA = 0;
let AVGgpa = 0;
let totalGrade = 0;
let AVGgrade = 0;
let totalCredits = 0;
let AllLessons;
if (document.querySelector('#contentqb-index-table') !== null) {
AllLessons = document.querySelector('#contentqb-index-table').children[1].firstChild.firstChild.children[1].children;
}
else {
AllLessons = document.querySelector('#contentdqxq-index-table').children[1].firstChild.firstChild.children[1].children;
}
let htotalGPA=0,htotalGrade=0,htotalCredits=0;
for (let i = 0; i < AllLessons.length; i++) {
if(AllLessons[i].children[9].innerHTML !== '通过' && AllLessons[i].children[9].innerHTML !== '不通过' && !isNaN(getGrade(AllLessons[i].children[9].innerHTML))){
calclulatedNum++;
let credit = parseFloat(AllLessons[i].children[7].firstChild.innerHTML);
let grade = getGrade(AllLessons[i].children[9].innerHTML);
let gpa = getGPA(grade);
htotalGPA += gpa * credit;
htotalGrade += grade * credit;
htotalCredits += credit;
}
}
console.log(`共查询到 ${totalNum}门课程\n计算了 ${calclulatedNum}门课程\n已获总学分为 ${htotalCredits},百分制均分为 ${htotalGrade/htotalCredits}\n4.8制度绩点为 ${htotalGPA/htotalCredits}`);
calclulatedNum=0;
for (let i = 0; i < AllLessons.length; i++) {
if (judgeLesson(AllLessons[i]) && AllLessons[i].children[9].innerHTML !== '通过' && AllLessons[i].children[9].innerHTML !== '不通过') {
calclulatedNum++;
let credit = parseFloat(AllLessons[i].children[7].firstChild.innerHTML);
let grade = getGrade(AllLessons[i].children[9].innerHTML);
let gpa = getGPA(grade);
totalGPA += gpa * credit;
totalGrade += grade * credit;
totalCredits += credit;
}
}
AVGgrade = totalGrade / totalCredits;
AVGgpa = totalGPA / totalCredits;
//alert(`共查询到 ${totalNum}门课程\n计算了 ${calclulatedNum}门课程\n已获总学分为 ${totalCredits}\n百分制均分为 ${AVGgrade}\n4.8制度绩点为 ${AVGgpa}`);
let gpaText = document.createElement('div');
gpaText.appendChild(document.createTextNode(`共查询到 ${totalNum}门课程, 计算了 ${calclulatedNum}门课程, 已获总学分为 ${totalCredits}, 百分制均分为 ${AVGgrade}, 4.8制度绩点为 ${AVGgpa}`));
if (document.querySelector('.jqx-tabs-title-container').children.length == 3) { document.querySelector('.jqx-tabs-title-container').appendChild(gpaText); }
else {document.querySelector('.jqx-tabs-title-container').children[3].innerHTML=`共查询到 ${totalNum}门课程, 计算了 ${calclulatedNum}门课程, 已获总学分为 ${totalCredits}, 百分制均分为 ${AVGgrade}, 4.8制度绩点为 ${AVGgpa}`}
}
let calcBtn = document.createElement('button');
calcBtn.appendChild(document.createTextNode("计算绩点"));
calcBtn.onclick = calclulate;
document.querySelector('.jqx-tabs-title-container').appendChild(calcBtn);
}
}
loadMyScript();
})();