我正在做一个测验。我的 start 按钮应该在点击时显示第一个问题/答案，而且确实如此(我第一次使用它)。
事实上，当我在测验结束时单击 startover 按钮时(一旦显示结果)，它会带我回到带有开始按钮的第一个“页面”(开始再次测验)但是当我点击开始按钮时，我认为进度条确实显示了，但问题没有显示!
基本上，我的 start 按钮可以启动测验，但如果你想重新开始测验，你不能，因为在这种情况下，它只显示进度条，没有其他任何内容。
这是我的代码:
$(document).ready(function(){ // DOC READY
var totalQuestions = $('.questionarea').length; // VARIABLES
var currentQuestion = 0;
var $progressbar = $("#progressbar");
var score = 0;
var value = 0;
$questions = $('.questionarea');
$questions.hide();
$("#startover").on("click", function(){ // STARTOVER
$(this).hide();
$(".answers").hide();
$("#images").hide();
$("#score").hide();
$(".btn-lg").show();
score = 0;
value = 0;
currentQuestion = 0;
$progressbar.val(value);
$questions.hide();
});
$(document).on("click", ".btn-lg", function(){ // START BUTTON FADE OUT
$(this).hide();
$progressbar.show(200);
$(".answers").show(200);
$($questions.get(currentQuestion)).fadeIn();
});
$(document).on("click", '.answers input', function(){ // NEW QUESTIONS FADE IN + PROGRESS BAR
$($questions.get(currentQuestion)).fadeOut(200, function () {
currentQuestion ++;
if (currentQuestion === totalQuestions){
$("#results").fadeIn(200);
}
else {
$questions.eq(currentQuestion).fadeIn(200);
}
value = value + 10;
$progressbar.val(value);
});
});
function calcScore() { // OPTIONS CHECKED
var house1 = document.getElementById('option1').checked;
var house2 = document.getElementById('option8').checked;
var house3 = document.getElementById('option11').checked;
var house4 = document.getElementById('option16').checked;
var house5 = document.getElementById('option18').checked;
var house6 = document.getElementById('option23').checked;
var house7 = document.getElementById('option27').checked;
var house8 = document.getElementById('option32').checked;
var house9 = document.getElementById('option35').checked;
var house10 = document.getElementById('option36').checked;
var sher1 = document.getElementById('option2').checked;
var sher2 = document.getElementById('option6').checked;
var sher3 = document.getElementById('option10').checked;
var sher4 = document.getElementById('option14').checked;
var sher5 = document.getElementById('option19').checked;
var sher6 = document.getElementById('option24').checked;
var sher7 = document.getElementById('option26').checked;
var sher8 = document.getElementById('option29').checked;
var sher9 = document.getElementById('option33').checked;
var sher10 = document.getElementById('option37').checked;
var cas1 = document.getElementById('option3').checked;
var cas2 = document.getElementById('option7').checked;
var cas3 = document.getElementById('option9').checked;
var cas4 = document.getElementById('option15').checked;
var cas5 = document.getElementById('option17').checked;
var cas6 = document.getElementById('option21').checked;
var cas7 = document.getElementById('option28').checked;
var cas8 = document.getElementById('option30').checked;
var cas9 = document.getElementById('option33').checked;
var cas10 = document.getElementById('option38').checked;
var brbad1 = document.getElementById('option4').checked;
var brbad2 = document.getElementById('option5').checked;
var brbad3 = document.getElementById('option12').checked;
var brbad4 = document.getElementById('option13').checked;
var brbad5 = document.getElementById('option20').checked;
var brbad6 = document.getElementById('option22').checked;
var brbad7 = document.getElementById('option25').checked;
var brbad8 = document.getElementById('option31').checked;
var brbad9 = document.getElementById('option34').checked;
var brbad10 = document.getElementById('option39').checked;
if(house1 === true){ // SCORE CALCULATION
score += 1;
}
if(house2 === true){
score += 1;
}
if(house3 === true){
score += 1;
}
if(house4 === true){
score += 1;
}
if(house5 === true){
score += 1;
}
if(house6 === true){
score += 1;
}
if(house7 === true){
score += 1;
}
if(house8 === true){
score += 1;
}
if(house9 === true){
score += 1;
}
if(house10 === true){
score += 1;
}
if(sher1 === true){
score += 2;
}
if(sher2 === true){
score += 2;
}
if(sher3 === true){
score += 2;
}
if(sher4 === true){
score += 2;
}
if(sher5 === true){
score += 2;
}
if(sher6 === true){
score += 2;
}
if(sher7 === true){
score += 2;
}
if(sher8 === true){
score += 2;
}
if(sher9 === true){
score += 2;
}
if(sher10 === true){
score += 2;
}
if(cas1 === true){
score += 3;
}
if(cas2 === true){
score += 3;
}
if(cas3 === true){
score += 3;
}
if(cas4 === true){
score += 3;
}
if(cas5 === true){
score += 3;
}
if(cas6 === true){
score += 3;
}
if(cas7 === true){
score += 3;
}
if(cas8 === true){
score += 3;
}
if(cas9 === true){
score += 3;
}
if(cas10 === true){
score += 3;
}
if(brbad1 === true){
score += 4;
}
if(brbad2 === true){
score += 4;
}
if(brbad3 === true){
score += 4;
}
if(brbad4 === true){
score += 4;
}
if(brbad5 === true){
score += 4;
}
if(brbad6 === true){
score += 4;
}
if(brbad7 === true){
score += 4;
}
if(brbad8 === true){
score += 4;
}
if(brbad9 === true){
score += 4;
}
if(brbad10 === true){
score += 4;
}
// CHARACTER SCORE
if(score < 12){
score = "House & Wilson!";
$("#houseimage").show();
}
if(score <= 20){
score = "Sherlock & John!";
$("#sherimage").show();
}
if(score <= 30){
score = "Dean & Cas!";
$("#casimage").show();
}
if(score <= 40){
score = "Walt & Jesse!";
$("#brbadimage").show();
}
}
// SHOW RESULTS
$("#results").click(function(){
$(this).hide();
$progressbar.hide();
$("#startover").show();
calcScore();
$("#score").show();
document.getElementById("score").innerText = 'You Got: ' + score;
});
}); body {
background-image: url("http://wallpoper.com/images/00/40/76/15/gregory-house_00407615.jpg");
background-size: cover;
background-repeat: no-repeat;
overflow: hidden;
background-position: fixed;
}
.header {
margin-top: 30px;
}
#title {
font-size: 30px;
text-align: center;
font-family: fantasy, serif;
margin-top: 50px;
margin: 0 auto;
float: none;
}
.box {
width: 900px;
height: 450px;
background-color: #ba348b;
border-radius: 40px;
box-shadow: 4px 4px 10px 4px black;
padding: auto;
overflow: hidden;
text-align: center;
margin: 0 auto;
margin-bottom: 20px;
margin-top: 30px;
float: none;
}
// START QUIZ BUTTON
#start {
background-color: #00c6d2;
border: 2px solid #13281c;
border-radius: 10px;
color: #13281c;
padding: 20px;
width: 200px;
opacity: 1;
margin-top: 110px;
font-size: 20px;
font-family: fantasy, serif;
&:hover {
background-color:
#009ea8;
}
}
.btn-lg {
float: none;
margin: 0 auto;
text-align:center;
margin-top: 70px;
margin-left: 10px;
}
// PROGRESS BAR
.divprogress {
text-align: center;
float: none;
margin: 0 auto;
}
#progressbar {
background-color: blue;
margin: 0 auto;
float: none;
box-shadow: none;
outline: none;
text-align: center;
width: 780px;
margin-left: auto;
margin-right:auto;
margin-top: 20px;
display: none;
}
// QUESTIONS AND ANSWERS
#QA1, #QA2, #QA3, #QA4, #QA5, #QA6, #QA7, #QA8, #QA9, #QA10 {
margin-top: 10px;
font-family: fantasy, serif;
color: #13281c;
display: none;
}
.questionarea {
display: none;
}
.col-lg-6 {
float: none;
margin: 0 auto;
margin-top: -40px;
}
.question1, .question2, .question3, .question4, .question5, .question6, .question7, .question8, .question9, .question10 {
font-size: 18px;
font-family: fantasy, serif;
margin-top: 70px;
margin-bottom: 30px;
}
.btn-primary {
font-size: 14px;
background-color: #ffff32 !important;
color: #13281c !important;
outline: 0 none;
opacity: 1;
border: 0 none;
&:hover{
background-color: #e5e500 !important;
color: black !important;
outline: 0 none;
}
}
// RESULTS BUTTON / TEXT
#results {
padding: 20px;
background-color: #609D57;
border: 3px solid darkgreen;
border-radius: 10px;
display: none;
text-align: center;
font-family: fantasy, serif;
float: center;
margin-top: 90px;
font-size: 18px;
color: #13281c !important;
outline: 0 none;
opacity: 1;
&:hover{
background-color: #568d4e !important;
color: black !important;
outline: 0 none;
}
}
#score {
text-align: center;
font-size: 20px;
font-family: fantasy, serif;
float: center;
color: #920602;
}
#startover{
text-align: center;
font-size: 14px;
font-family: fantasy, serif;
margin-top: 20px;
float: center;
display: none;
background-color: rgba(211,211,211, 0.7);
&:hover {
background-color: rgba(211,211,211, 1);
}
}
// IMAGES
#houseimage, #sherimage, #casimage, #brbadimage {
display: none;
text-align: center;
margin-top: 10px;
}
#houseimage, #sherimage, #brbadimage {
height: 240px;
}<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<body>
<div class="container box">
<div class="header">
<div class="text-center" id="title"> WHICH TV BROMANCE ARE YOU AND YOUR BFF? </div></div>
<div class="col-sm-11 text-center divprogress">
<div class="text-center">
<progress class="progress progress-striped progress-animated center-block" style="width: 0%, text-align: center" id="progressbar" value="0" max="100"></progress> </div></div>
<br>
<br>
<div class="col-lg-6 text-center">
<button type="button" class="btn btn-secondary btn-lg text-center" id="start">START QUIZ</button></div>
<!-- QUIZ AREA -->
<!-- QUESTION & ANSWERS 1 -->
<div id="content">
<div class="questionarea text-center" id="QA1" data-question"1">
<ul class="col-lg-6 list-group text-center">
<p class="list-group-item question1">Q1: How did you and your BFF meet?</p>
</ul>
<br>
<div class="answers">
<div id="divoption1">
<label class="btn btn-primary">
<input type="radio" name="question1" value="1" id="option1"> At work </label></div>
<br>
<div id="divoption2">
<label class="btn btn-primary">
<input type="radio" name="question1" value="2" id="option2"> Living together</label></div>
<br>
<div id="divoption3"><label class="btn btn-primary">
<input type="radio" name="question1" value="3" id="option3"> Under unusual or other circumstances</label></div>
<br>
<div id="divoption4">
<label class="btn btn-primary">
<input type="radio" name="question1" value="4" id="option4"> In school</label></div></div>
</div>
<!-- QUESTION & ANSWERS 2 -->
<div class="questionarea text-center" id="QA2" data-question"2">
<ul class="col-lg-6 list-group text-center">
<p class="list-group-item question2">Q2: How long have you known each other?</p>
</ul>
<br>
<div class="answers">
<div id="divoption1">
<label class="btn btn-primary">
<input type="radio" name="question2" value="4" id="option5"> Less than 3 years </label></div>
<br>
<div id="divoption2">
<label class="btn btn-primary">
<input type="radio" name="question2" value="2" id="option6"> 4-7 years</label></div>
<br>
<div id="divoption3"><label class="btn btn-primary">
<input type="radio" name="question1" value="3" id="option7"> At least 8 years</label></div>
<br>
<div id="divoption4">
<label class="btn btn-primary">
<input type="radio" name="question2" value="1" id="option8"> Over 20 years</label></div></div>
</div>
<!-- QUESTION & ANSWERS 3 -->
<div class="questionarea text-center" id="QA3" data-question"3">
<ul class="col-lg-6 list-group text-center">
<p class="list-group-item question3">Q3: How would you describe your friendship?</p>
</ul>
<br>
<div class="answers">
<div id="divoption1">
<label class="btn btn-primary">
<input type="radio" name="question3" value="3" id="option9"> Deep </label></div>
<br>
<div id="divoption2">
<label class="btn btn-primary">
<input type="radio" name="question3" value="2" id="option10"> Amazing</label></div>
<br>
<div id="divoption3"><label class="btn btn-primary">
<input type="radio" name="question1" value="1" id="option11"> Needy</label></div>
<br>
<div id="divoption4">
<label class="btn btn-primary">
<input type="radio" name="question3" value="4" id="option12"> Protective</label></div></div>
</div>
<!-- QUESTION & ANSWERS 4 -->
<div class="questionarea text-center" id="QA4" data-question"3">
<ul class="col-lg-6 list-group text-center">
<p class="list-group-item question4">Q4: What do you do together?</p>
</ul>
<br>
<div class="answers">
<div id="divoption1">
<label class="btn btn-primary">
<input type="radio" name="question4" value="4" id="option13"> Business </label></div>
<br>
<div id="divoption2">
<label class="btn btn-primary">
<input type="radio" name="question4" value="2" id="option14"> Go out</label></div>
<br>
<div id="divoption3"><label class="btn btn-primary">
<input type="radio" name="question4" value="3" id="option15"> Just hold each other</label> </div>
<br>
<div id="divoption4">
<label class="btn btn-primary">
<input type="radio" name="question4" value="1" id="option16"> Play pranks on each other</label></div></div>
</div>
<!-- QUESTION & ANSWERS 5 -->
<div class="questionarea text-center" id="QA5" data-question"4">
<ul class="col-lg-6 list-group text-center">
<p class="list-group-item question5">Q5: How often do you fight?</p>
</ul>
<br>
<div class="answers">
<div id="divoption1">
<label class="btn btn-primary">
<input type="radio" name="question5" value="3" id="option17"> Not much, but when we do, it's a big deal </label></div>
<br>
<div id="divoption2">
<label class="btn btn-primary">
<input type="radio" name="question5" value="1" id="option18"> We have lots of harmless tiffs</label></div>
<br>
<div id="divoption3"><label class="btn btn-primary">
<input type="radio" name="question5" value="2" id="option19"> Sometimes</label> </div>
<br>
<div id="divoption4">
<label class="btn btn-primary">
<input type="radio" name="question5" value="4" id="option20"> Often and it can get physical</label></div></div>
</div>
<!-- QUESTION & ANSWERS 6 -->
<div class="questionarea text-center" id="QA6" data-question"4">
<ul class="col-lg-6 list-group text-center">
<p class="list-group-item question6">Q6: How well do you know each other?</p>
</ul>
<br>
<div class="answers">
<div id="divoption1">
<label class="btn btn-primary">
<input type="radio" name="question6" value="3" id="option21"> Quite a lot </label></div>
<br>
<div id="divoption2">
<label class="btn btn-primary">
<input type="radio" name="question6" value="4" id="option22"> Not much</label></div>
<br>
<div id="divoption3"><label class="btn btn-primary">
<input type="radio" name="question6" value="1" id="option23"> We know every detail of each other's lives</label> </div>
<br>
<div id="divoption4">
<label class="btn btn-primary">
<input type="radio" name="question6" value="2" id="option24"> He knows way more about my life than I know about his (or viceversa)</label></div></div>
</div>
<!-- QUESTION & ANSWERS 7 -->
<div class="questionarea text-center" id="QA7" data-question"4">
<ul class="col-lg-6 list-group text-center">
<p class="list-group-item question7">Q7: Do you celebrate your birthdays together?</p>
</ul>
<br>
<div class="answers">
<div id="divoption1">
<label class="btn btn-primary">
<input type="radio" name="question7" value="4" id="option25"> No, but I buy him a great present </label></div>
<br>
<div id="divoption2">
<label class="btn btn-primary">
<input type="radio" name="question7" value="2" id="option26"> Of course</label></div>
<br>
<div id="divoption3"><label class="btn btn-primary">
<input type="radio" name="question7" value="1" id="option27"> Often</label> </div>
<br>
<div id="divoption4">
<label class="btn btn-primary">
<input type="radio" name="question7" value="3" id="option28"> Only if he's in town at the time</label></div></div>
</div>
<!-- QUESTION & ANSWERS 8 -->
<div class="questionarea text-center" id="QA8" data-question"4">
<ul class="col-lg-6 list-group text-center">
<p class="list-group-item question8">Q8: How often are you around each other's houses?</p>
</ul>
<br>
<div class="answers">
<div id="divoption1">
<label class="btn btn-primary">
<input type="radio" name="question8" value="2" id="option29"> We live together </label></div>
<br>
<div id="divoption2">
<label class="btn btn-primary">
<input type="radio" name="question8" value="3" id="option30"> Often</label></div>
<br>
<div id="divoption3"><label class="btn btn-primary">
<input type="radio" name="question8" value="4" id="option31"> Not often</label></div>
<br>
<div id="divoption4">
<label class="btn btn-primary">
<input type="radio" name="question8" value="1" id="option32"> All the time</label></div></div>
</div>
<!-- QUESTION & ANSWERS 9 -->
<div class="questionarea text-center" id="QA9" data-question"4">
<ul class="col-lg-6 list-group text-center">
<p class="list-group-item question9">Q9: How often do you talk about your feelings?</p>
</ul>
<br>
<div class="answers">
<div id="divoption1">
<label class="btn btn-primary">
<input type="radio" name="question9" value="3" id="option33"> No need. We can see right through each other </label></div>
<br>
<div id="divoption2">
<label class="btn btn-primary">
<input type="radio" name="question9" value="2" id="option33"> Occasionally</label></div>
<br>
<div id="divoption3"><label class="btn btn-primary">
<input type="radio" name="question9" value="4" id="option34"> Rarely</label></div>
<br>
<div id="divoption4">
<label class="btn btn-primary">
<input type="radio" name="question9" value="1" id="option35"> Only in a joking manner</label></div></div>
</div>
<!-- QUESTION & ANSWERS 10 -->
<div class="questionarea text-center" id="QA10" data-question"4">
<ul class="col-lg-6 list-group text-center">
<p class="list-group-item question10">Q10: What do you consider each other as?</p>
</ul>
<br>
<div class="answers">
<div id="divoption1">
<label class="btn btn-primary">
<input type="radio" name="question10" value="1" id="option36"> Life partners </label></div>
<br>
<div id="divoption2">
<label class="btn btn-primary">
<input type="radio" name="question10" value="2" id="option37"> Best friends</label></div>
<br>
<div id="divoption3"><label class="btn btn-primary">
<input type="radio" name="question10" value="3" id="option38"> Family (brothers)</label></div>
<br>
<div id="divoption4">
<label class="btn btn-primary">
<input type="radio" name="question10" value="4" id="option39"> Family (father/son)</label></div></div>
</div>
<!-- ---- -->
<button id="results">View Results</button>
<h2 id='score'></h2>
<div id="images">
<img id="houseimage" src="http://24.media.tumblr.com/tumblr_m70pdclcae1qcy01ao1_500.gif" />
<img id="brbadimage" src="http://24.media.tumblr.com/c88e253d9ed37f2cf422bf4bef27bcbc/tumblr_n52r45b3YW1qglx18o1_r1_250.gif" />
<img id="sherimage" src="http://read.html5.qq.com/image?src=forum&q=5&r=0&imgflag=7&imageUrl=http://mmbiz.qpic.cn/mmbiz/4vhrz0icYkiaUHCPsiaJUKMEsFnUWwluggISyy0iaAaZvhOxcKhdc3XLK8LhSc3q52lOaIvBzsuZP93STzKEyqoYBw/0?wx_fmt=gif" />
<img id="casimage" src="http://66.media.tumblr.com/9c0723fa2ff4054cea2d0a530802fef8/tumblr_inline_mtnsncH2fn1qjt6x6.gif" />
</div>
<div><button id="startover">Start Over</button></div>
</div>
</div>
</body>最佳答案
$("#startover").on("click", function(){ // STARTOVER
$(this).hide();
$('#option1').removeAttr('checked');
$('#option2').removeAttr('checked');
/// and so on for rest of options use an array/loop to be more elegant
//$("#images").hide(); dont want to hide slideshow
$("#score").hide();
$(".btn-lg").show();
score = 0;
value = 0;
currentQuestion = 0;
$progressbar.val(value);
$questions.hide();
});
关于javascript - 单击启动按钮时，开始按钮不显示问题，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/38641786/