| 词条 | XCOM测试 |
| 释义 | <?xml version="1.0"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "xhtml11.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en"><head><meta name="author" content="Created with Hot Potatoes by Half-Baked Software, registered to UNREGISTERED."></meta><meta name="keywords" content="Hot Potatoes, Hot Potatoes, Half-Baked Software, Windows, University of Victoria"></meta> <link rel="schema.DC" href="http://purl.org/dc/elements/1.1/" /> <meta name="DC:Creator" content="UNREGISTERED" /> <meta name="DC:Title" content="XCOM可以监听几个端口？" /> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /> <title> XCOM可以监听几个端口？ </title> <!-- Made with executable version 6.0 Release 4 Build 27 --> <!-- The following insertion allows you to add your own code directly to this head tag from the configuration screen --> <style type="text/css"> /* This is the CSS stylesheet used in the exercise. */ /* Elements in square brackets are replaced by data based on configuration settings when the exercise is built. */ /* BeginCorePageCSS */ /* Made with executable version 6.0 Release 4 Build 27 */ /* Hack to hide a nested Quicktime player from IE, which can't handle it. */ * html object.MediaPlayerNotForIE { display: none; } body{ font-family: Geneva,Arial,sans-serif; background-color: #C0C0C0; color: #000000; margin-right: 5%; margin-left: 5%; font-size: small; } p{ text-align: left; margin: 0px; font-size: 100%; } table,div,span,td{ font-size: 100%; color: #000000; } div.Titles{ padding: 0.5em;; text-align: center; color: #000000; } button{ font-family: Geneva,Arial,sans-serif; font-size: 100%; display: inline; } .ExerciseTitle{ font-size: 140%; color: #000000; } .ExerciseSubtitle{ font-size: 120%; color: #000000; } div.StdDiv{ background-color: #FFFFFF; text-align: center; font-size: 100%; color: #000000; padding: 0.5em; border-style: solid; border-width: 1px 1px 1px 1px; border-color: #000000; margin-bottom: 1px; } /* EndCorePageCSS */ .RTLText{ text-align: right; font-size: 150%; direction: rtl; font-family: "Simplified Arabic", "Traditional Arabic", "Times New Roman", Geneva,Arial,sans-serif; } .CentredRTLText{ text-align: center; font-size: 150%; direction: rtl; font-family: "Simplified Arabic", "Traditional Arabic", "Times New Roman", Geneva,Arial,sans-serif; 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text-align: center; border-bottom-style: solid; border-bottom-width: 1px; border-bottom-color: #000000; width: 80%; } /* JCloze styles */ .ClozeWordList{ text-align: center; font-weight: bold; } div.ClozeBody{ text-align: left; margin-top: 2em; margin-bottom: 2em; line-height: 2.0 } span.GapSpan{ font-weight: bold; } /* JCross styles */ table.CrosswordGrid{ margin: auto auto 1em auto; border-collapse: collapse; padding: 0px; background-color: #000000; } table.CrosswordGrid tbody tr td{ width: 1.5em; height: 1.5em; text-align: center; vertical-align: middle; font-size: 140%; padding: 1px; margin: 0px; border-style: solid; border-width: 1px; border-color: #000000; color: #000000; } table.CrosswordGrid span{ color: #000000; } table.CrosswordGrid td.BlankCell{ background-color: #000000; color: #000000; } table.CrosswordGrid td.LetterOnlyCell{ text-align: center; vertical-align: middle; background-color: #ffffff; color: #000000; font-weight: bold; } table.CrosswordGrid td.NumLetterCell{ text-align: left; 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this.win = (this.ver.indexOf('Windows') != -1); //Look for Gecko this.gecko = (this.ua.indexOf('Gecko') > 1); if (this.gecko){ this.geckoVer = parseInt(this.ua.substring(this.ua.indexOf('Gecko')+6, this.ua.length)); if (this.geckoVer < 20020000){this.min = false;} } //Look for Firebird this.firebird = (this.ua.indexOf('Firebird') > 1); //Look for Safari this.safari = (this.ua.indexOf('Safari') > 1); if (this.safari){ this.gecko = false; } //Look for IE this.ie = (this.ua.indexOf('MSIE') > 0); if (this.ie){ this.ieVer = parseFloat(this.ua.substring(this.ua.indexOf('MSIE')+5, this.ua.length)); if (this.ieVer < 5.5){this.min = false;} } //Look for Opera this.opera = (this.ua.indexOf('Opera') > 0); if (this.opera){ this.operaVer = parseFloat(this.ua.substring(this.ua.indexOf('Opera')+6, this.ua.length)); if (this.operaVer < 7.04){this.min = false;} } if (this.min == false){ alert('Your browser may not be able to handle this page.'); } //Special case for the horrible ie5mac this.ie5mac = (this.ie&&this.mac&&(this.ieVer<6)); } var C = new Client(); //for (prop in C){ // alert(prop + ': ' + C[prop]); //} //CODE FOR HANDLING NAV BUTTONS AND FUNCTION BUTTONS //[strNavBarJS] function NavBtnOver(Btn){ if (Btn.className != 'NavButtonDown'){Btn.className = 'NavButtonUp';} } function NavBtnOut(Btn){ Btn.className = 'NavButton'; } function NavBtnDown(Btn){ Btn.className = 'NavButtonDown'; } //[/strNavBarJS] function FuncBtnOver(Btn){ if (Btn.className != 'FuncButtonDown'){Btn.className = 'FuncButtonUp';} } function FuncBtnOut(Btn){ Btn.className = 'FuncButton'; } function FuncBtnDown(Btn){ Btn.className = 'FuncButtonDown'; } function FocusAButton(){ if (document.getElementById('CheckButton1') != null){ document.getElementById('CheckButton1').focus(); } else{ if (document.getElementById('CheckButton2') != null){ document.getElementById('CheckButton2').focus(); } else{ document.getElementsByTagName('button')[0].focus(); } } } //CODE FOR HANDLING DISPLAY OF POPUP FEEDBACK BOX var topZ = 1000; function ShowMessage(Feedback){ var Output = Feedback + '<br /><br />'; document.getElementById('FeedbackContent').innerHTML = Output; var FDiv = document.getElementById('FeedbackDiv'); topZ++; FDiv.style.zIndex = topZ; FDiv.style.top = TopSettingWithScrollOffset(30) + 'px'; FDiv.style.display = 'block'; ShowElements(false, 'input'); ShowElements(false, 'select'); ShowElements(false, 'object'); //Focus the OK button setTimeout("document.getElementById('FeedbackOKButton').focus()", 50); // } //Added code to work around Quicktime bug for 6.0.4.24. function ShowElements(Show, TagName){ //Special for IE bug -- hide all the form elements that will show through the popup if ((C.ie)||(TagName == 'object')){ var Els = document.getElementsByTagName(TagName); for (var i=0; i<Els.length; i++){ if (Show == true){ Els[i].style.visibility = 'visible'; } else{ Els[i].style.visibility = 'hidden'; } } } } function HideFeedback(){ document.getElementById('FeedbackDiv').style.display = 'none'; ShowElements(true, 'input'); ShowElements(true, 'select'); ShowElements(true, 'object'); if (Finished == true){ Finish(); } } //GENERAL UTILITY FUNCTIONS AND VARIABLES //PAGE DIMENSION FUNCTIONS function PageDim(){ //Get the page width and height this.W = 600; this.H = 400; this.W = document.getElementsByTagName('body')[0].clientWidth; this.H = document.getElementsByTagName('body')[0].clientHeight; } var pg = null; function GetPageXY(El) { var XY = {x: 0, y: 0}; while(El){ XY.x += El.offsetLeft; XY.y += El.offsetTop; El = El.offsetParent; } return XY; } function GetScrollTop(){ if (document.documentElement && document.documentElement.scrollTop){ return document.documentElement.scrollTop; } else{ if (document.body){ return document.body.scrollTop; } else{ return window.pageYOffset; } } } function GetViewportHeight(){ if (window.innerHeight){ return window.innerHeight; } else{ return document.getElementsByTagName('body')[0].clientHeight; } } function TopSettingWithScrollOffset(TopPercent){ var T = Math.floor(GetViewportHeight() * (TopPercent/100)); return GetScrollTop() + T; } //CODE FOR AVOIDING LOSS OF DATA WHEN BACKSPACE KEY INVOKES history.back() var InTextBox = false; function SuppressBackspace(e){ if (InTextBox == true){return;} if (C.ie) { thisKey = window.event.keyCode; } else { thisKey = e.keyCode; } var Suppress = false; if (thisKey == 8) { Suppress = true; } if (Suppress == true){ if (C.ie){ window.event.returnValue = false; window.event.cancelBubble = true; } else{ e.preventDefault(); } } } if (C.ie){ document.attachEvent('onkeydown',SuppressBackspace); window.attachEvent('onkeydown',SuppressBackspace); } else{ if (window.addEventListener){ window.addEventListener('keypress',SuppressBackspace,false); } } function ReduceItems(InArray, ReduceToSize){ var ItemToDump=0; var j=0; while (InArray.length > ReduceToSize){ ItemToDump = Math.floor(InArray.length*Math.random()); InArray.splice(ItemToDump, 1); } } function Shuffle(InArray){ var Num; var Temp = new Array(); var Len = InArray.length; var j = Len; for (var i=0; i<Len; i++){ Temp[i] = InArray[i]; } for (i=0; i<Len; i++){ Num = Math.floor(j * Math.random()); InArray[i] = Temp[Num]; for (var k=Num; k < (j-1); k++) { Temp[k] = Temp[k+1]; } j--; } return InArray; } function WriteToInstructions(Feedback) { document.getElementById('InstructionsDiv').innerHTML = Feedback; } function EscapeDoubleQuotes(InString){ return InString.replace(/"/g, '"') } function TrimString(InString){ var x = 0; if (InString.length != 0) { while ((InString.charAt(InString.length - 1) == '\\u0020') || (InString.charAt(InString.length - 1) == '\\u000A') || (InString.charAt(InString.length - 1) == '\\u000D')){ InString = InString.substring(0, InString.length - 1) } while ((InString.charAt(0) == '\\u0020') || (InString.charAt(0) == '\\u000A') || (InString.charAt(0) == '\\u000D')){ InString = InString.substring(1, InString.length) } while (InString.indexOf(' ') != -1) { x = InString.indexOf(' ') InString = InString.substring(0, x) + InString.substring(x+1, InString.length) } return InString; } else { return ''; } } function FindLongest(InArray){ if (InArray.length < 1){return -1;} var Longest = 0; for (var i=1; i<InArray.length; i++){ if (InArray[i].length > InArray[Longest].length){ Longest = i; } } return Longest; } //UNICODE CHARACTER FUNCTIONS function IsCombiningDiacritic(CharNum){ var Result = (((CharNum >= 0x0300)&&(CharNum <= 0x370))||((CharNum >= 0x20d0)&&(CharNum <= 0x20ff))); Result = Result || (((CharNum >= 0x3099)&&(CharNum <= 0x309a))||((CharNum >= 0xfe20)&&(CharNum <= 0xfe23))); return Result; } function IsCJK(CharNum){ return ((CharNum >= 0x3000)&&(CharNum < 0xd800)); } //SETUP FUNCTIONS //BROWSER WILL REFILL TEXT BOXES FROM CACHE IF NOT PREVENTED function ClearTextBoxes(){ var NList = document.getElementsByTagName('input'); for (var i=0; i<NList.length; i++){ if ((NList[i].id.indexOf('Guess') > -1)||(NList[i].id.indexOf('Gap') > -1)){ NList[i].value = ''; } if (NList[i].id.indexOf('Chk') > -1){ NList[i].checked = ''; } } } //EXTENSION TO ARRAY OBJECT function Array_IndexOf(Input){ var Result = -1; for (var i=0; i<this.length; i++){ if (this[i] == Input){ Result = i; } } return Result; } Array.prototype.indexOf = Array_IndexOf; //IE HAS RENDERING BUG WITH BOTTOM NAVBAR function RemoveBottomNavBarForIE(){ if ((C.ie)&&(document.getElementById('Reading') != null)){ if (document.getElementById('BottomNavBar') != null){ document.getElementById('TheBody').removeChild(document.getElementById('BottomNavBar')); } } } //HOTPOTNET-RELATED CODE var HPNStartTime = (new Date()).getTime(); var SubmissionTimeout = 30000; var Detail = ''; //Global that is used to submit tracking data function Finish(){ //If there's a form, fill it out and submit it if (document.store != null){ Frm = document.store; Frm.starttime.value = HPNStartTime; Frm.endtime.value = (new Date()).getTime(); Frm.mark.value = Score; Frm.detail.value = Detail; Frm.submit(); } } //JQUIZ CORE JAVASCRIPT CODE var CurrQNum = 0; var CorrectIndicator = ':-)'; var IncorrectIndicator = 'X'; var YourScoreIs = 'Your score is '; var ContinuousScoring = true; var CorrectFirstTime = 'Questions answered correctly first time: '; var ShowCorrectFirstTime = true; var ShuffleQs = false; var ShuffleAs = false; var DefaultRight = 'Correct!'; var DefaultWrong = 'Sorry! Try again.'; var QsToShow = 3; var Score = 0; var Finished = false; var Qs = null; var QArray = new Array(); var ShowingAllQuestions = false; var ShowAllQuestionsCaption = 'Show all questions'; var ShowOneByOneCaption = 'Show questions one by one'; var State = new Array(); var Feedback = ''; var TimeOver = false; var strInstructions = ''; //The following variable can be used to add a message explaining that //the question is finished, so no further marking will take place. var strQuestionFinished = ''; function CompleteEmptyFeedback(){ var QNum, ANum; for (QNum=0; QNum<I.length; QNum++){ //Only do this if not multi-select if (I[QNum][2] != '3'){ for (ANum = 0; ANum<I[QNum][3].length; ANum++){ if (I[QNum][3][ANum][1].length < 1){ if (I[QNum][3][ANum][2] > 0){ I[QNum][3][ANum][1] = DefaultRight; } else{ I[QNum][3][ANum][1] = DefaultWrong; } } } } } } function SetUpQuestions(){ var AList = new Array(); var QList = new Array(); var i, j; Qs = document.getElementById('Questions'); while (Qs.getElementsByTagName('li').length > 0){ QList.push(Qs.removeChild(Qs.getElementsByTagName('li')[0])); } var DumpItem = 0; if (QsToShow > QList.length){ QsToShow = QList.length; } while (QsToShow < QList.length){ DumpItem = Math.floor(QList.length*Math.random()); for (j=DumpItem; j<(QList.length-1); j++){ QList[j] = QList[j+1]; } QList.length = QList.length-1; } if (ShuffleQs == true){ QList = Shuffle(QList); } if (ShuffleAs == true){ var As; for (var i=0; i<QList.length; i++){ As = QList[i].getElementsByTagName('ol')[0]; if (As != null){ AList.length = 0; while (As.getElementsByTagName('li').length > 0){ AList.push(As.removeChild(As.getElementsByTagName('li')[0])); } AList = Shuffle(AList); for (j=0; j<AList.length; j++){ As.appendChild(AList[j]); } } } } for (i=0; i<QList.length; i++){ Qs.appendChild(QList[i]); QArray[QArray.length] = QList[i]; } //Show the first item QArray[0].style.display = ''; //Now hide all except the first item for (i=1; i<QArray.length; i++){ QArray[i].style.display = 'none'; } SetQNumReadout(); SetFocusToTextbox(); } function SetFocusToTextbox(){ //if there's a textbox, set the focus in it if (QArray[CurrQNum].getElementsByTagName('input')[0] != null){ QArray[CurrQNum].getElementsByTagName('input')[0].focus(); //and show a keypad if there is one if (document.getElementById('CharacterKeypad') != null){ document.getElementById('CharacterKeypad').style.display = 'block'; } } else{ if (QArray[CurrQNum].getElementsByTagName('textarea')[0] != null){ QArray[CurrQNum].getElementsByTagName('textarea')[0].focus(); //and show a keypad if there is one if (document.getElementById('CharacterKeypad') != null){ document.getElementById('CharacterKeypad').style.display = 'block'; } } //This added for 6.0.4.11: hide accented character buttons if no textbox else{ if (document.getElementById('CharacterKeypad') != null){ document.getElementById('CharacterKeypad').style.display = 'none'; } } } } function ChangeQ(ChangeBy){ //The following line prevents moving to another question until the current //question is answered correctly. Uncomment it to enable this behaviour. // if (State[CurrQNum][0] == -1){return;} if (((CurrQNum + ChangeBy) < 0)||((CurrQNum + ChangeBy) >= QArray.length)){return;} QArray[CurrQNum].style.display = 'none'; CurrQNum += ChangeBy; QArray[CurrQNum].style.display = ''; //Undocumented function added 10/12/2004 ShowSpecialReadingForQuestion(); SetQNumReadout(); SetFocusToTextbox(); } var HiddenReadingShown = false; function ShowSpecialReadingForQuestion(){ //Undocumented function for showing specific reading text elements which change with each question //Added on 10/12/2004 if (document.getElementById('ReadingDiv') != null){ if (HiddenReadingShown == true){ document.getElementById('ReadingDiv').innerHTML = ''; } if (QArray[CurrQNum] != null){ //Fix for 6.0.4.25 var Children = QArray[CurrQNum].getElementsByTagName('div'); for (var i=0; i<Children.length; i++){ if (Children[i].className=="HiddenReading"){ document.getElementById('ReadingDiv').innerHTML = Children[i].innerHTML; HiddenReadingShown = true; //Hide the ShowAllQuestions button to avoid confusion if (document.getElementById('ShowMethodButton') != null){ document.getElementById('ShowMethodButton').style.display = 'none'; } } } } } } function SetQNumReadout(){ document.getElementById('QNumReadout').innerHTML = (CurrQNum+1) + ' / ' + QArray.length; if ((CurrQNum+1) >= QArray.length){ if (document.getElementById('NextQButton') != null){ document.getElementById('NextQButton').style.visibility = 'hidden'; } } else{ if (document.getElementById('NextQButton') != null){ document.getElementById('NextQButton').style.visibility = 'visible'; } } if (CurrQNum <= 0){ if (document.getElementById('PrevQButton') != null){ document.getElementById('PrevQButton').style.visibility = 'hidden'; } } else{ if (document.getElementById('PrevQButton') != null){ document.getElementById('PrevQButton').style.visibility = 'visible'; } } } var I=new Array(); I[0]=new Array();I[0][0]=100; I[0][1]=''; I[0][2]='0'; I[0][3]=new Array(); I[0][3][0]=new Array('1\\u4E2A','',0,0,1); I[0][3][1]=new Array('2\\u4E2A','',0,0,1); I[0][3][2]=new Array('3\\u4E2A','',0,0,1); I[0][3][3]=new Array('n\\u4E2A\\uFF081<= n <= 65536\\uFF09','',1,100,1); I[1]=new Array();I[1][0]=100; I[1][1]=''; I[1][2]='0'; I[1][3]=new Array(); I[1][3][0]=new Array('\\u901A\\u4FE1\\u4E2D\\u95F4\\u4EF6','Correct!',1,100,1); I[1][3][1]=new Array('\\u5E94\\u7528\\u7A0B\\u5E8F','Sorry! Try again.',0,0,1); I[1][3][2]=new Array('\\u6570\\u636E\\u5E93\\u7A0B\\u5E8F','Sorry! Try again.',0,0,1); I[1][3][3]=new Array('\\u6D88\\u606F\\u4E2D\\u95F4\\u4EF6','Correct!',1,100,1); I[2]=new Array();I[2][0]=100; I[2][1]=''; I[2][2]='3'; I[2][3]=new Array(); I[2][3][0]=new Array('\\u901A\\u4FE1\\u4E2D\\u95F4\\u4EF6','',1,100,1); I[2][3][1]=new Array('\\u6570\\u636E\\u5E93\\u670D\\u52A1\\u5668','',0,0,1); I[2][3][2]=new Array('\\u6D88\\u606F\\u4E2D\\u95F4\\u4EF6','',1,100,1); I[2][3][3]=new Array('\\u5E94\\u7528\\u7A0B\\u5E8F','',0,0,1); function StartUp(){ RemoveBottomNavBarForIE(); //If there's only one question, no need for question navigation controls if (QsToShow < 2){ document.getElementById('QNav').style.display = 'none'; } //Stash the instructions so they can be redisplayed strInstructions = document.getElementById('InstructionsDiv').innerHTML; CompleteEmptyFeedback(); SetUpQuestions(); ClearTextBoxes(); CreateStatusArray(); //Check search string for q parameter if (document.location.search.length > 0){ if (ShuffleQs == false){ var JumpTo = parseInt(document.location.search.substring(1,document.location.search.length))-1; if (JumpTo <= QsToShow){ ChangeQ(JumpTo); } } } //Undocumented function added 10/12/2004 ShowSpecialReadingForQuestion(); } function ShowHideQuestions(){ FuncBtnOut(document.getElementById('ShowMethodButton')); document.getElementById('ShowMethodButton').style.display = 'none'; if (ShowingAllQuestions == false){ for (var i=0; i<QArray.length; i++){ QArray[i].style.display = ''; } document.getElementById('Questions').style.listStyleType = 'decimal'; document.getElementById('OneByOneReadout').style.display = 'none'; document.getElementById('ShowMethodButton').innerHTML = ShowOneByOneCaption; ShowingAllQuestions = true; } else{ for (var i=0; i<QArray.length; i++){ if (i != CurrQNum){ QArray[i].style.display = 'none'; } } document.getElementById('Questions').style.listStyleType = 'none'; document.getElementById('OneByOneReadout').style.display = ''; document.getElementById('ShowMethodButton').innerHTML = ShowAllQuestionsCaption; ShowingAllQuestions = false; } document.getElementById('ShowMethodButton').style.display = 'inline'; } function CreateStatusArray(){ var QNum, ANum; //For each item in the item array for (QNum=0; QNum<I.length; QNum++){ //Check if the question still exists (hasn't been nuked by showing a random selection) if (document.getElementById('Q_' + QNum) != null){ State[QNum] = new Array(); State[QNum][0] = -1; //Score for this q; -1 shows question not done yet State[QNum][1] = new Array(); //answers for (ANum = 0; ANum<I[QNum][3].length; ANum++){ State[QNum][1][ANum] = 0; //answer not chosen yet; when chosen, will store its position in the series of choices } State[QNum][2] = 0; //tries at this q so far State[QNum][3] = 0; //incrementing percent-correct values of selected answers State[QNum][4] = 0; //penalties incurred for hints State[QNum][5] = ''; //Sequence of answers chosen by number } else{ State[QNum] = null; } } } function CheckMCAnswer(QNum, ANum, Btn){ //if question doesn't exist, bail if (State[QNum].length < 1){return;} //Get the feedback Feedback = I[QNum][3][ANum][1]; //Now show feedback and bail if question already complete if (State[QNum][0] > -1){ //Add an extra message explaining that the question // is finished if defined by the user if (strQuestionFinished.length > 0){Feedback += '<br />' + strQuestionFinished;} //Show the feedback ShowMessage(Feedback); return; } //Hide the button while processing Btn.style.display = 'none'; //Increment the number of tries State[QNum][2]++; //Add the percent-correct value of this answer State[QNum][3] += I[QNum][3][ANum][3]; //Store the try number in the answer part of the State array, for tracking purposes State[QNum][1][ANum] = State[QNum][2]; State[QNum][5] += String.fromCharCode(65+ANum) + ','; //Should this answer be accepted as correct? if (I[QNum][3][ANum][2] < 1){ //It's wrong //Mark the answer Btn.innerHTML = IncorrectIndicator; //Remove any previous score unless exercise is finished (6.0.3.8+) if (Finished == false){ WriteToInstructions(strInstructions); } //Check whether this leaves just one MC answer unselected, in which case the Q is terminated var RemainingAnswer = FinalAnswer(QNum); if (RemainingAnswer > -1){ //Behave as if the last answer had been selected, but give no credit for it //Increment the number of tries State[QNum][2]++; //Calculate the score for this question CalculateMCQuestionScore(QNum); //Get the overall score and add it to the feedback CalculateOverallScore(); if ((ContinuousScoring == true)||(Finished == true)){ Feedback += '<br />' + YourScoreIs + ' ' + Score + '%.'; WriteToInstructions(YourScoreIs + ' ' + Score + '%.'); } } } else{ //It's right //Mark the answer Btn.innerHTML = CorrectIndicator; //Calculate the score for this question CalculateMCQuestionScore(QNum); //Get the overall score and add it to the feedback if (ContinuousScoring == true){ CalculateOverallScore(); if ((ContinuousScoring == true)||(Finished == true)){ Feedback += '<br />' + YourScoreIs + ' ' + Score + '%.'; WriteToInstructions(YourScoreIs + ' ' + Score + '%.'); } } } //Show the button again Btn.style.display = 'inline'; //Finally, show the feedback ShowMessage(Feedback); //Check whether all questions are now done CheckFinished(); } function CalculateMCQuestionScore(QNum){ var Tries = State[QNum][2] + State[QNum][4]; //include tries and hint penalties var PercentCorrect = State[QNum][3]; var TotAns = GetTotalMCAnswers(QNum); var HintPenalties = State[QNum][4]; //Make sure it's not already complete if (State[QNum][0] < 0){ //Allow for Hybrids if (HintPenalties >= 1){ State[QNum][0] = 0; } else{ //This line calculates the score for this question if (TotAns == 1){ State[QNum][0] = 1; } else{ State[QNum][0] = ((TotAns-((Tries*100)/State[QNum][3]))/(TotAns-1)); } } //Fix for Safari bug added for version 6.0.3.42 (negative infinity problem) if ((State[QNum][0] < 0)||(State[QNum][0] == Number.NEGATIVE_INFINITY)){ State[QNum][0] = 0; } } } function GetTotalMCAnswers(QNum){ var Result = 0; for (var ANum=0; ANum<I[QNum][3].length; ANum++){ if (I[QNum][3][ANum][4] == 1){ //This is an MC answer Result++; } } return Result; } function FinalAnswer(QNum){ var UnchosenAnswers = 0; var FinalAnswer = -1; for (var ANum=0; ANum<I[QNum][3].length; ANum++){ if (I[QNum][3][ANum][4] == 1){ //This is an MC answer if (State[QNum][1][ANum] < 1){ //This answer hasn't been chosen yet UnchosenAnswers++; FinalAnswer = ANum; } } } if (UnchosenAnswers == 1){ return FinalAnswer; } else{ return -1; } } function CheckMultiSelAnswer(QNum){ //bail if question doesn't exist or exercise finished if ((State[QNum].length < 1)||(Finished == true)){return;} //Increment the tries for this question State[QNum][2]++; var ShouldBeChecked; var Matches = 0; State[QNum][5] += '|'; //Check if there are any mismatches Feedback = ''; var CheckBox = null; for (var ANum=0; ANum<I[QNum][3].length; ANum++){ CheckBox = document.getElementById('Q_' + QNum + '_' + ANum + '_Chk'); if (CheckBox.checked == true){ State[QNum][5] += 'Y'; } else{ State[QNum][5] += 'N'; } ShouldBeChecked = (I[QNum][3][ANum][2] == 1); if (ShouldBeChecked == CheckBox.checked){ Matches++; } else{ Feedback = I[QNum][3][ANum][1]; } } //Add the hit readout Feedback = Matches + ' / ' + I[QNum][3].length + '<br />' + Feedback; if (Matches == I[QNum][3].length){ //It's right CalculateMultiSelQuestionScore(QNum); if (ContinuousScoring == true){ CalculateOverallScore(); if ((ContinuousScoring == true)||(Finished == true)){ Feedback += '<br />' + YourScoreIs + ' ' + Score + '%.'; WriteToInstructions(YourScoreIs + ' ' + Score + '%.'); } } } else{ //It's wrong -- Remove any previous score unless exercise is finished (6.0.3.8+) if (Finished == false){ WriteToInstructions(strInstructions); } } //Show the feedback ShowMessage(Feedback); //Check whether all questions are now done CheckFinished(); } function CalculateMultiSelQuestionScore(QNum){ var Tries = State[QNum][2]; var TotAns = State[QNum][1].length; //Make sure it's not already complete if (State[QNum][0] < 0){ State[QNum][0] = (TotAns - (Tries-1)) / TotAns; if (State[QNum][0] < 0){ State[QNum][0] = 0; } } } function CalculateOverallScore(){ var TotalWeighting = 0; var TotalScore = 0; for (var QNum=0; QNum<State.length; QNum++){ if (State[QNum] != null){ if (State[QNum][0] > -1){ TotalWeighting += I[QNum][0]; TotalScore += (I[QNum][0] * State[QNum][0]); } } } if (TotalWeighting > 0){ Score = Math.floor((TotalScore/TotalWeighting)*100); } else{ //if TotalWeighting is 0, no questions so far have any value, so //no penalty should be shown. Score = 100; } } function CheckFinished(){ var FB = ''; var AllDone = true; for (var QNum=0; QNum<State.length; QNum++){ if (State[QNum] != null){ if (State[QNum][0] < 0){ AllDone = false; } } } if (AllDone == true){ //Report final score and submit if necessary CalculateOverallScore(); FB = YourScoreIs + ' ' + Score + '%.'; if (ShowCorrectFirstTime == true){ var CFT = 0; for (QNum=0; QNum<State.length; QNum++){ if (State[QNum] != null){ if (State[QNum][0] >= 1){ CFT++; } } } FB += '<br />' + CorrectFirstTime + ' ' + CFT + '/' + QsToShow; } WriteToInstructions(FB); Finished == true; TimeOver = true; Locked = true; Finished = true; Detail = '<?xml version="1.0"?><hpnetresult><fields>'; for (QNum=0; QNum<State.length; QNum++){ if (State[QNum] != null){ if (State[QNum][5].length > 0){ Detail += '<field><fieldname>Question #' + (QNum+1) + '</fieldname><fieldtype>question-tracking</fieldtype><fieldlabel>Q ' + (QNum+1) + '</fieldlabel><fieldlabelid>QuestionTrackingField</fieldlabelid><fielddata>' + State[QNum][5] + '</fielddata></field>'; } } } Detail += '</fields></hpnetresult>'; setTimeout('Finish()', SubmissionTimeout); } } //--> //]]> </script> </head> <body onload="StartUp()" id="TheBody"> <!-- BeginTopNavButtons --> <div class="NavButtonBar" id="TopNavBar"> <button class="NavButton" onfocus="NavBtnOver(this)" onblur="NavBtnOut(this)" onmouseover="NavBtnOver(this)" onmouseout="NavBtnOut(this)" onmousedown="NavBtnDown(this)" onmouseup="NavBtnOut(this)" onclick="location='contents.htm'; return false;"> Index </button> <button class="NavButton" onfocus="NavBtnOver(this)" onblur="NavBtnOut(this)" onmouseover="NavBtnOver(this)" onmouseout="NavBtnOut(this)" onmousedown="NavBtnDown(this)" onmouseup="NavBtnOut(this)" onclick="location='nextpage.htm'; return false;">=></button> </div> <!-- EndTopNavButtons --> <div class="Titles"> <h2 class="ExerciseTitle">XCOM可以监听几个端口？</h2> <h3 class="ExerciseSubtitle">Quiz</h3> </div> <div id="InstructionsDiv" class="StdDiv"> <div id="Instructions"></div> </div> <div id="MainDiv" class="StdDiv"> <div id="QNav" class="QuestionNavigation"> <p style="text-align: right;"> <button id="ShowMethodButton" class="FuncButton" onfocus="FuncBtnOver(this)" onblur="FuncBtnOut(this)" onmouseover="FuncBtnOver(this)" onmouseout="FuncBtnOut(this)" onmousedown="FuncBtnDown(this)" onmouseup="FuncBtnOver(this)" onclick="ShowHideQuestions(); return false;">Show all questions</button> </p> <div id="OneByOneReadout"> <button id="PrevQButton" class="FuncButton" onfocus="FuncBtnOver(this)" onblur="FuncBtnOut(this)" onmouseover="FuncBtnOver(this)" onmouseout="FuncBtnOut(this)" onmousedown="FuncBtnDown(this)" onmouseup="FuncBtnOver(this)" onclick="ChangeQ(-1); return false;"><=</button> <span id="QNumReadout" class="QNum"> </span> <button id="NextQButton" class="FuncButton" onfocus="FuncBtnOver(this)" onblur="FuncBtnOut(this)" onmouseover="FuncBtnOver(this)" onmouseout="FuncBtnOut(this)" onmousedown="FuncBtnDown(this)" onmouseup="FuncBtnOver(this)" onclick="ChangeQ(1); return false;">=></button> <br /> </div> </div> <ol class="QuizQuestions" id="Questions"> <li class="QuizQuestion" id="Q_0" style="display: none;"><div class="QuestionText"></div><ol class="MCAnswers"><li id="Q_0_0"><button class="FuncButton" onfocus="FuncBtnOver(this)" onblur="FuncBtnOut(this)" onmouseover="FuncBtnOver(this)" onmouseout="FuncBtnOut(this)" onmousedown="FuncBtnDown(this)" onmouseup="FuncBtnOut(this)" id="Q_0_0_Btn" onclick="CheckMCAnswer(0,0,this)"> ? </button> 1个</li><li id="Q_0_1"><button class="FuncButton" onfocus="FuncBtnOver(this)" onblur="FuncBtnOut(this)" onmouseover="FuncBtnOver(this)" onmouseout="FuncBtnOut(this)" onmousedown="FuncBtnDown(this)" onmouseup="FuncBtnOut(this)" id="Q_0_1_Btn" onclick="CheckMCAnswer(0,1,this)"> ? </button> 2个</li><li id="Q_0_2"><button class="FuncButton" onfocus="FuncBtnOver(this)" onblur="FuncBtnOut(this)" onmouseover="FuncBtnOver(this)" onmouseout="FuncBtnOut(this)" onmousedown="FuncBtnDown(this)" onmouseup="FuncBtnOut(this)" id="Q_0_2_Btn" onclick="CheckMCAnswer(0,2,this)"> ? </button> 3个</li><li id="Q_0_3"><button class="FuncButton" onfocus="FuncBtnOver(this)" onblur="FuncBtnOut(this)" onmouseover="FuncBtnOver(this)" onmouseout="FuncBtnOut(this)" onmousedown="FuncBtnDown(this)" onmouseup="FuncBtnOut(this)" id="Q_0_3_Btn" onclick="CheckMCAnswer(0,3,this)"> ? </button> n个（1<= n <= 65536）</li></ol></li> <li class="QuizQuestion" id="Q_1" style="display: none;"><div class="QuestionText"></div><ol class="MCAnswers"><li id="Q_1_0"><button class="FuncButton" onfocus="FuncBtnOver(this)" onblur="FuncBtnOut(this)" onmouseover="FuncBtnOver(this)" onmouseout="FuncBtnOut(this)" onmousedown="FuncBtnDown(this)" onmouseup="FuncBtnOut(this)" id="Q_1_0_Btn" onclick="CheckMCAnswer(1,0,this)"> ? </button> 通信中间件</li><li id="Q_1_1"><button class="FuncButton" onfocus="FuncBtnOver(this)" onblur="FuncBtnOut(this)" onmouseover="FuncBtnOver(this)" onmouseout="FuncBtnOut(this)" onmousedown="FuncBtnDown(this)" onmouseup="FuncBtnOut(this)" id="Q_1_1_Btn" onclick="CheckMCAnswer(1,1,this)"> ? </button> 应用程序</li><li id="Q_1_2"><button class="FuncButton" onfocus="FuncBtnOver(this)" onblur="FuncBtnOut(this)" onmouseover="FuncBtnOver(this)" onmouseout="FuncBtnOut(this)" onmousedown="FuncBtnDown(this)" onmouseup="FuncBtnOut(this)" id="Q_1_2_Btn" onclick="CheckMCAnswer(1,2,this)"> ? </button> 数据库程序</li><li id="Q_1_3"><button class="FuncButton" onfocus="FuncBtnOver(this)" onblur="FuncBtnOut(this)" onmouseover="FuncBtnOver(this)" onmouseout="FuncBtnOut(this)" onmousedown="FuncBtnDown(this)" onmouseup="FuncBtnOut(this)" id="Q_1_3_Btn" onclick="CheckMCAnswer(1,3,this)"> ? </button> 消息中间件</li></ol></li> <li class="QuizQuestion" id="Q_2" style="display: none;"><div class="QuestionText"></div><ol class="MSelAnswers"><li id="Q_2_0"><form method="post" action="" onsubmit="return false;"><div><input type="checkbox" id="Q_2_0_Chk" class="MSelCheckbox" />通信中间件</div></form></li><li id="Q_2_1"><form method="post" action="" onsubmit="return false;"><div><input type="checkbox" id="Q_2_1_Chk" class="MSelCheckbox" />数据库服务器</div></form></li><li id="Q_2_2"><form method="post" action="" onsubmit="return false;"><div><input type="checkbox" id="Q_2_2_Chk" class="MSelCheckbox" />消息中间件</div></form></li><li id="Q_2_3"><form method="post" action="" onsubmit="return false;"><div><input type="checkbox" id="Q_2_3_Chk" class="MSelCheckbox" />应用程序</div></form></li></ol><button class="FuncButton" onfocus="FuncBtnOver(this)" onblur="FuncBtnOut(this)" onmouseover="FuncBtnOver(this)" onmouseout="FuncBtnOut(this)" onmousedown="FuncBtnDown(this)" onmouseup="FuncBtnOut(this)" onclick="CheckMultiSelAnswer(2)">Check</button></li></ol> </div> <div class="Feedback" id="FeedbackDiv"> <div class="FeedbackText" id="FeedbackContent"></div> <button id="FeedbackOKButton" class="FuncButton" onfocus="FuncBtnOver(this)" onblur="FuncBtnOut(this)" onmouseover="FuncBtnOver(this)" onmouseout="FuncBtnOut(this)" onmousedown="FuncBtnDown(this)" onmouseup="FuncBtnOut(this)" onclick="HideFeedback(); return false;"> OK </button> </div> <!-- BeginBottomNavButtons --> <div class="NavButtonBar" id="BottomNavBar"> <button class="NavButton" onfocus="NavBtnOver(this)" onblur="NavBtnOut(this)" onmouseover="NavBtnOver(this)" onmouseout="NavBtnOut(this)" onmousedown="NavBtnDown(this)" onmouseup="NavBtnOut(this)" onclick="location='contents.htm'; return false;"> Index </button> <button class="NavButton" onfocus="NavBtnOver(this)" onblur="NavBtnOut(this)" onmouseover="NavBtnOver(this)" onmouseout="NavBtnOut(this)" onmousedown="NavBtnDown(this)" onmouseup="NavBtnOut(this)" onclick="location='nextpage.htm'; return false;">=></button> </div> <!-- EndBottomNavButtons --> <!-- BeginSubmissionForm --> <!-- EndSubmissionForm --> </body> </html> |
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