try to take over the world!
当前为
// ==UserScript==
// @name WhuGPACalculator
// @namespace http://tampermonkey.net/
// @version 0.1
// @description try to take over the world!
// @author You
// @match http://bkjw.whu.edu.cn/stu/stu_index.jsp
// @match http://bkjw.whu.edu.cn/stu/stu_score_parent.jsp
// @grant none
// ==/UserScript==
(function(){
//var btn3 = document.getElementById("btn3")
var scoreTable;
var digit = 4;
var btn9 = document.getElementById("btn9");
var totalGpaBtn = document.createElement("button");
var semeGpaBtn = document.createElement("button");
var courseList = [];
window.onload= function(){
courseList = getCourseList();
totalGpaBtn.textContent = "获取总绩点";
semeGpaBtn.textContent = "获取学期绩点";
totalGpaBtn.addEventListener("click", dispTotalGPA);
semeGpaBtn.addEventListener("click", dispSemeGPA);
btn9.insertAdjacentElement("afterend",semeGpaBtn);
btn9.insertAdjacentElement("afterend",totalGpaBtn);
}
function getCourseList(){
//获取成绩框架scoreTable
var scoreIfram0 = document.getElementById("page_iframe").contentWindow;
var scoreIfram = scoreIfram0.document.getElementById("iframe0").contentWindow;
//获取成绩框架中的成绩表scoreTable
scoreTable = scoreIfram.document.getElementsByClassName("listTable");
//var scoreTable = document.getElementsByClassName("listTable");
//获取成绩表格中的每一列数据scoreLines
var scoreLines = scoreTable[0].getElementsByTagName("tr");
//在每一行中获取课程信息course
var i = 0;
var scoreInfo;
var courseList = [];
for(i = 1; i < scoreLines.length; i++){
scoreInfo = scoreLines[i].getElementsByTagName("td");;
var course = {};
var name = scoreInfo[0].innerHTML;
var year = scoreInfo[8].innerHTML;
var seme = scoreInfo[9].innerHTML;
var credit = scoreInfo[4].innerHTML;
var mark = parseFloat(scoreInfo[10].innerHTML);
var gpa;
if(mark >= 90){
gpa = 4.0;
}
else if(mark >= 85){
gpa = 3.7;
}
else if(mark >= 83){
gpa = 3.3;
}
else if(mark >= 79){
gpa = 3.0;
}
else if(mark >= 75){
gpa = 2.7;
}
else if(mark >= 72){
gpa = 2.3;
}
else if(mark >= 68){
gpa = 2.0;
}
else if(mark >= 64){
gpa = 1.5;
}
else if(mark >= 60){
gpa = 1.0;
}
else{
gpa = 0.0;
}
if(!isNaN(mark)){
course.name = name;
course.credit = credit;
course.gpa = gpa;
course.year = year;
course.seme = seme;
courseList.push(course);
}
}
return courseList;
}
function dispTotalGPA(){
//var courseList = getCourseList();
var results = calculateTotalGPA(courseList);
// here is checked, run well
//addElement(scoreTable, gpa);
addElement(scoreTable, results);
}
function dispSemeGPA(){
//var courseList = getCourseList();
//alert(courseList.length);
var results = CalculateSemeGPA(courseList);
addElement(scoreTable, results);
}
function addElement(scoreTable, results){
var i = 0;
for(i = 0; i < results.length; i++){
//alert("add a new line");
if(isNaN(results[i].gpa)){
}
else{
//添加一行
var newLine = document.createElement('tr');
var newItem0 = document.createElement('td');
var newItem1 = document.createElement('td');
newItem0.textContent = results[i].type;
newItem1.textContent = results[i].gpa;
newLine.appendChild(newItem0);
newLine.appendChild(newItem1);
scoreTable[0].insertAdjacentElement('afterbegin', newLine);
}
}
}
function calculateTotalGPA(courseList){
var i = 0;
var totalgpa = 0.0;
var totalCredits = 0.0;
var gpa = 0.0;
for(i = 0; i < courseList.length; i++){
totalCredits += parseFloat(courseList[i].credit);
totalgpa += parseFloat(courseList[i].gpa * courseList[i].credit);
}
gpa = totalgpa / totalCredits;
var result = {type:'总绩点', gpa: gpa.toPrecision(digit),};
var results = [];
results.push(result);
return results;
}
function CalculateSemeGPA(courseList){
var semes = [];
var results = [];
var i = 0;
for(i = 0; i < courseList.length; i++){
var currentSeme = {};
currentSeme.year = courseList[i].year;
currentSeme.seme = courseList[i].seme;
var j = 0;
//查看有多少学期
if(semes.length == 0){
semes.push(currentSeme);
//alert("semes is only one");
}
else{
//alert("semes is no longer one");
for(j = 0; j < semes.length; j++){
if(semes[j].year == currentSeme.year && semes[j].seme == currentSeme.seme){
j = 9999;
break;
}
}
if(j != 9999){
semes.push(currentSeme);
}
}
}
//对每个学期分别计算gpa,写入results中
//alert("semes");
//alert(semes.length);
for(i = 0; i < semes.length; i++){
var totalCredits = 0.0;
var totalgpa = 0.0;
for(j = 0; j < courseList.length; j ++){
//对每个学期计算gpa
if(courseList[j].year == semes[i].year && courseList[j].seme == semes[i].seme){
totalCredits += parseFloat(courseList[j].credit);
totalgpa += parseFloat(courseList[j].credit) * parseFloat(courseList[j].gpa);
}
}
var gpa = 0;
gpa = totalgpa / totalCredits;
var result = {};
result.gpa = gpa.toPrecision(digit);
result.year = parseInt(semes[i].year);
result.seme = parseInt(semes[i].seme);
result.type = semes[i].year + "年第" + semes[i].seme + "学期";
//alert(result.type);
results.push(result);
}
results.sort(function(b, a){
if(a.year == b.year){
return a.seme - b.seme;
}
else{
return a.year - b.year;
}
});
return results;
}
})();