onlinetestORonlineexam要求代码流程图(HTMLJAVASCRIPT).doc

1.要求2.代码3.流程图4.图片1. 要求Second coursework A website for online examCoursework Requirements:Establish an online exam website using knowledge of JavaScript and XHTML learned in our course. The detailed functional requirements are listed as follows:1. A question library for exam is needed, which should contain at least 20 questions and correct answers (a question can have several correct answers).2. An exam should be generated with five questions and corresponding choices with answers. These questions and corresponding choices are randomly selected or generated from the question library.3. Before starting the exam, people can set the score threshold, which determines the “pass” or “fail” of the exam. Such threshold can not be changed after starting the exam.4. The exam is limited within 2 minutes. Two buttons are need to control the exam “Start” and “Submit”. When people press “Start”, it means the exam begins. When “Submit” is pressed, the score can be calculated automatically.5. If people pass or fail the exam within above timeframe, a corresponding message is delivered to people. The exam is over with statistical report and detailed analysis report, see 7.6. If people pass the exam overtime with score A, a re-exam can be taken with the same timeframe and same score threshold (The “Start” button should be changed to “Re-start” button accordingly). The regulation for the re-exam is same as for the exam, see 4. However, only one opportunity is provided to take such re-exam. If people pass the re-exam with score B, the final score is generated by following equation:Score is used to determine the final status of the whole exam: pass or fail. The exam is over with statistical report and detailed analysis report, see 7.7. Two kinds of exam reports need to be generated for the whole exam (including re-exam activities). One is focusing on the statistical analysis, while the other should give the detailed analysis report for each question and corresponding answer.Additional requirements for the coursework: Language: English Naming your variables and functions with meaningful identification. Flowcharts used for requirement analysis should be generated and delivered together with the online quiz website.Coursework grading rule:Key pointScore Functional requirements60 Question library10 Question generation10 Exam control10 First exam logic10 Re-exam logic10 Report generation10 Additional requirements30 Coding manner10 Flowchart20 Consistency10 Consistency between flowchart and application10 Total1002. 代码（有一些小问题没解决，第一次打开时题目可能显示不全，再次打开就没问题了）【TestOnline.html】（MainLogo.jpg见最下方，放在“images”文件夹中）TestOnlinevar testtimes =0;var testscore =0;var questions ;var answer; var correctanswers ;function getscorethreshold()var scorethreshold =document.setscorethreshold.scorethreshold.value;return scorethreshold;function Start()if(testtimes2)questions =, ;answer =, unchoose,unchoose,unchoose,unchoose,;correctanswers =0,0,0,0,0,0,0,0,0,0;testtimes =testtimes+1;window.open( TestPage.html,); startSet.startButton.disabled = true; else window.alert( Sorry.You have no chance to have test); testscore2.Restart.disabled = true; function TestReport()window.open( TestReport.html,);setTimeout(top.moveTo(0,0),5);setTimeout(top.resizeTo(screen.availWidth,screen.availHeight),5);StatementThere are 5 questions about mathematics in this online test. You will have 50seconds to finish them. If your score is lower than the score threshold, youwould fail the test.Only if your score is higher than the score threshold butovertime, youd have one more chance to pass the test within the time given. Please enter the score threshold:%Your score is：【TestPage.html】Testingvar question= new Array(20);for (var i=0;i0,(A/2+B/4+C/16) is approximately equal to 6.4,A/2+B/4+C/16=?;question51=6.4;question52=6.375 or 6.4375;question53=1;question60=Taking m/n=ab,(n not=0) as given,which of the following is right?;question61=nb;question62=an;question63=0;question70=947-599+76*64=?;question71=5412;question72=5212;question73=1;question80=Taking x2+3*x-2=3 as given,2*x2+6*x-5=?;question81=5;question82=-5;question83=0;question90=If 2 is one root of x2-c=0, then c=?;question91=4;question92=-4;question93=0;question100=37.85-(7.85+6.4)*30=?;question101=706;question102=708;question103=1;question110=Factorize 2a2-4a=?;question111=2a(a-2);question112=2a(a-1);question113=0;question120=3(-1)=?;question121=1/3;question122=3;question123=0;question130=156*107-7729=?;question131=8963;question132=8973;question133=0;question140=Which of the following is right?;question141=x2+x2=x4;question142=x2*x=x3;question143=1;question150=|-2|=?;question151=-2;question152=2;question153=1;question160=3.45*0.6*2.8=?;question161=5.596;question162=5.796;question163=1;question170=If there are 3 obtuse angles in a polygons interior angles,how many edges does the polygon have at most?;question171=6;question172=5;question173=0;question180=3+2=?;question181=5;question182=4;question183=0;question190=(0.75*42.7+57.3-0.573*25)/3*72=?;question191=1600;question192=1800;question193=1;var Questionnumber =Q0,Q1,Q2,Q3,Q4; var Answernumber =A,B;var keys =0,0,0,0,0;var scorethreshold =window.opener.getscorethreshold();var times =window.opener.testtimes;var lastscore =window.opener.testscore;var initseconds =50;var settime=0; var time =0;document.write();for(var i=0;i=4;i+)var current=Math.floor(Math.random()*20-1);var Questionlabel=1.,2.,3.,4.,5.;keysi = questioncurrent3;window.opener.questionsi = questioncurrent0; document.write(+Questionlabeli+questioncurrent0+);for(var j=1;j=2;j+)document.write( + +Answernumberj-1 +.+questioncurrentj +);for(var i=0;i=4;i+)window.opener.answer0i =Answernumberkeysi;window.opener.answer10 =myQuiz.Q0keys0.value;window.opener.answer11 =myQuiz.Q1keys1.value;window.opener.answer12 =myQuiz.Q2keys2.value;window.opener.answer13 =myQuiz.Q3keys3.value;window.opener.answer14 =myQuiz.Q4keys4.value;document.write(The time left: 50 s);document.write();document.write();function checkAnswers() var score = 0; var usedTime = time; if(myQuiz.Q0keys0.checked) score = score + 20; if(myQuiz.Q1keys1.checked) score = score + 20; if(myQuiz.Q2keys2.checked) score = score + 20; if(myQuiz.Q3keys3.checked) score = score + 20; if(myQuiz.Q4keys4.checked) score = score + 20; for(var i=0;i= 1;i+) if(myQuiz.Q0i.checked) window.opener.correctanswers00 =Answernumberi;window.opener.correctanswers10 =myQuiz.Q0i.value; for(var i=0; i= 1;i+) if(myQuiz.Q1i.checked) window.opener.correctanswers01 =Answernumberi; window.opener.correctanswers11 =myQuiz.Q1i.value; for(var i = 0; i = 1; i+) if(myQuiz.Q2i.checked) window.opener.correctanswers02 =Answernumberi; window.opener.correctanswers12 =myQuiz.Q2i.value; for(var i=0; i=1; i+) if(myQuiz.Q3i.checked)window.opener.correctanswers03 =Answernumberi;window.opener.correctanswers13 =myQuiz.Q3i.value; for(vari=0;i= scorethreshold) if(usedTime = settime) window.opener.testscore2.innerText =pass; else window.opener.testscore2.innerHTML =Sorry,time runs out.You have to try it again. + ; else window.opener.testscore2.innerText =fail; else score =(score + lastscore)/2); window.opener.testscore1.innerText =score; if(score = scorethreshold) window.opener.testscore2.innerText =pass; else window.opener.testscore2.innerText =fail; window.opener.focus(); window.close();function timeCount()initseconds = initseconds-1;time = Math.floor(initseconds); document.getElementById(countdownseconds).innerHTML = time; window.onload=function()setInterval(timeCount