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JavaScript制作答题评分功能的方法

发布时间：2020-06-26 12:36:54 作者：Leah
来源：亿速云 阅读：258

这篇文章运用简单易懂的例子给大家介绍JavaScript制作答题评分功能的方法，代码非常详细，感兴趣的小伙伴们可以参考借鉴，希望对大家能有所帮助。

HTML部分

<!DOCTYPE html>
<html lang="en">

<head>
 <meta charset="UTF-8">
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
 <meta http-equiv="X-UA-Compatible" content="ie=edge">
 <link rel="stylesheet" href="./index.css" >
 <link rel="stylesheet" href="./timeTo.css" >
 <title>JavaScript实现一个在线做题测试网页</title>
</head>

<body>
 <div class="testContainer">
  <h4>在线答题</h4>
  <div class="testHeader">
   <div class="testLeft">测试已开始，请开始作答,请在30分钟内完成答题</div>
   <div class="testRight" id="countdown-11"></div>
  </div>
  <ul class="testContent">
  </ul>
  <div onclick="submitAnswer()" id="submitBtn">提交</div>
 </div>
 <script src="./jquery-2.1.1.min.js"></script>
 <script src="./jquery.time-to.js"></script>
 <script src="./index.js"></script>
 
</body>

</html>

CSS部分

index.css

timeTo.css

figure, figcaption {
 display: block;
}

.transition {
 -webkit-transition: top 400ms linear;
 -moz-transition: top 400ms linear;
 -ms-transition: top 400ms linear;
 -o-transition: top 400ms linear;
 transition: top 400ms linear;
}

.timeTo {
 font-family: Tahoma, Verdana, Aial, sans-serif;
 font-size: 28px;
 line-height: 108%;
 font-weight: bold;
 height: 32px;
}

.timeTo span {
 vertical-align: top;
}

.timeTo.timeTo-white div {
 color: black;
 background: #ffffff; /* Old browsers */
 background: -moz-linear-gradient(top, #ffffff 38%, #cccccc 100%); /* FF3.6+ */
 background: -webkit-gradient(linear, left top, left bottom, color-stop(38%,#ffffff), color-stop(100%,#cccccc)); /* Chrome,Safari4+ */
 background: -webkit-linear-gradient(top, #ffffff 38%,#cccccc 100%); /* Chrome10+,Safari5.1+ */
 background: -o-linear-gradient(top, #ffffff 38%,#cccccc 100%); /* Opera 11.10+ */
 background: -ms-linear-gradient(top, #ffffff 38%,#cccccc 100%); /* IE10+ */
 background: linear-gradient(to bottom, #ffffff 38%,#cccccc 100%); /* W3C */
 filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#ffffff', endColorstr='#cccccc',GradientType=0 ); /* IE6-9 */
}
.timeTo.timeTo-black div {
 color: white;
 background: #45484d; /* Old browsers */
 background: -moz-linear-gradient(top, #45484d 0%, #000000 100%); /* FF3.6+ */
 background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#45484d), color-stop(100%,#000000)); /* Chrome,Safari4+ */
 background: -webkit-linear-gradient(top, #45484d 0%,#000000 100%); /* Chrome10+,Safari5.1+ */
 background: -o-linear-gradient(top, #45484d 0%,#000000 100%); /* Opera 11.10+ */
 background: -ms-linear-gradient(top, #45484d 0%,#000000 100%); /* IE10+ */
 background: linear-gradient(to bottom, #45484d 0%,#000000 100%); /* W3C */
 filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#45484d', endColorstr='#000000',GradientType=0 ); /* IE6-9 */
}

.timeTo.timeTo-black .timeTo-alert {
 background: #a74444; /* Old browsers */
 background: -moz-linear-gradient(top, #a74444 0%, #3f0000 67%); /* FF3.6+ */
 background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#a74444), color-stop(67%,#3f0000)); /* Chrome,Safari4+ */
 background: -webkit-linear-gradient(top, #a74444 0%,#3f0000 67%); /* Chrome10+,Safari5.1+ */
 background: -o-linear-gradient(top, #a74444 0%,#3f0000 67%); /* Opera 11.10+ */
 background: -ms-linear-gradient(top, #a74444 0%,#3f0000 67%); /* IE10+ */
 background: linear-gradient(to bottom, #a74444 0%,#3f0000 67%); /* W3C */
 filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#a74444', endColorstr='#3f0000',GradientType=0 ); /* IE6-9 */
}

.timeTo.timeTo-white .timeTo-alert {
 background: #ffffff; /* Old browsers */
 background: -moz-linear-gradient(top, #ffffff 35%, #e17373 100%); /* FF3.6+ */
 background: -webkit-gradient(linear, left top, left bottom, color-stop(35%,#ffffff), color-stop(100%,#e17373)); /* Chrome,Safari4+ */
 background: -webkit-linear-gradient(top, #ffffff 35%,#e17373 100%); /* Chrome10+,Safari5.1+ */
 background: -o-linear-gradient(top, #ffffff 35%,#e17373 100%); /* Opera 11.10+ */
 background: -ms-linear-gradient(top, #ffffff 35%,#e17373 100%); /* IE10+ */
 background: linear-gradient(to bottom, #ffffff 35%,#e17373 100%); /* W3C */
 filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#ffffff', endColorstr='#e17373',GradientType=0 ); /* IE6-9 */
}

.timeTo figure {
 display: inline-block;
 margin: 0;
 padding: 0;
}
.timeTo figcaption {
 text-align: center;
 /*font-size: 12px;*/
 line-height: 80%;
 font-weight: normal;
 color: #888;
}

.timeTo div {
 position: relative;
 display: inline-block;
 width: 25px;
 height: 30px;
 border-top: 1px solid silver;
 border-right: 1px solid silver;
 border-bottom: 1px solid silver;
 overflow: hidden;
}
.timeTo div.first {
 border-left: 1px solid silver;
}

.timeTo ul {
 list-style-type: none;
 margin: 0;
 padding: 0;
 position: absolute;
 left: 3px;
}

.timeTo ul li {
 margin: 0;
 padding: 0;
 list-style: none;
}

jquery.time-to.js部分

/**
 * Time-To jQuery plug-in
 * Show countdown timer or realtime clock
 *
 * @author Oleksii Teterin <altmoc@gmail.com>
 * @version 1.3.0
 * @license MIT http://opensource.org/licenses/MIT
 * @date 2019-05-14
 * @host https://github.com/Lexxus/jq-timeTo
 */

(function (factory) {
 if (typeof define === 'function' && define.amd) {
  // AMD (RequireJS)
  define(['jquery'], factory);
 } else if (typeof exports === 'object') {
  // CommonJS (Node)
  /* eslint-disable import/no-unresolved */
  module.exports = factory(require('jquery'));
 } else {
  // globals
  factory(jQuery);
 }
}(function ($) {
 var SECONDS_PER_DAY = 86400;
 var SECONDS_PER_HOUR = 3600;

 /* eslint-disable no-multi-spaces */
 var defaults = {
  callback: null,   // callback function for exec when timer out
  step: null,    // callback function to exec every {stepCount} ticks
  stepCount: 1,   // number of ticks to increment before executing stepCount
  captionSize: 0,   // font-size by pixels for captions, if 0 then calculate automaticaly
  countdown: true,   // is countdown or real clock
  countdownAlertLimit: 10, // limit in seconds when display red background
  displayCaptions: false, // display captions under digit groups
  displayDays: 0,   // display day timer, count of days digits
  displayHours: true,  // display hours
  fontFamily: 'Verdana, sans-serif',
  fontSize: 0,    // font-size of a digit by pixels (0 - use CSS instead)
  lang: 'en',    // language of caption
  languages: {},   // extra or overridden languages
  seconds: 0,    // timer's countdown value in seconds
  start: true,    // true to start timer immediately
  theme: 'white',   // 'white' or 'black' theme fo timer's view

  width: 25,    // width of a digit area
  height: 30,    // height of a digit area
  gap: 11,     // gap size between numbers
  vals: [0, 0, 0, 0, 0, 0, 0, 0, 0], // private, current value of each digit
  limits: [9, 9, 9, 2, 9, 5, 9, 5, 9], // private, max value of each digit
  iSec: 8,     // private, index of second digit
  iHour: 4,    // private, index of hour digit
  tickTimeout: 1000,  // timeout betweet each timer tick in miliseconds
  intervalId: null,  // private
  tickCount: 0    // private
 };

 var methods = {
  start: function (sec) {
   var intervalId;

   if (sec) {
    init.call(this, sec);
    intervalId = setTimeout(tick.bind(this), 1000);

    // save start time
    this.data('ttStartTime', $.now());
    this.data('intervalId', intervalId);
   }
  },

  stop: function () {
   var data = this.data();

   if (data.intervalId) {
    clearTimeout(data.intervalId);
    this.data('intervalId', null);
   }
   return data;
  },

  reset: function (sec) {
   var data = methods.stop.call(this);
   var secs = typeof sec === 'undefined' &#63; data.seconds : sec;

   this.find('div').css({ backgroundPosition: 'left center' });
   this.find('ul').parent().removeClass('timeTo-alert');

   init.call(this, secs, true);
  }
 };

 var dictionary = {
  en: { days: 'days', hours: 'hours', min: 'minutes', sec: 'seconds' },
  ru: { days: 'дней', hours: 'часов', min: 'минут', sec: 'секунд' },
  ua: { days: 'днiв', hours: 'годин', min: 'хвилин', sec: 'секунд' },
  de: { days: 'Tag', hours: 'Uhr', min: 'Minuten', sec: 'Secunden' },
  fr: { days: 'jours', hours: 'heures', min: 'minutes', sec: 'secondes' },
  es: { days: 'días', hours: 'horas', min: 'minutos', sec: 'segundos' },
  sp: { days: 'días', hours: 'horas', min: 'minutos', sec: 'segundos' },
  it: { days: 'giorni', hours: 'ore', min: 'minuti', sec: 'secondi' },
  nl: { days: 'dagen', hours: 'uren', min: 'minuten', sec: 'seconden' },
  no: { days: 'dager', hours: 'timer', min: 'minutter', sec: 'sekunder' },
  pt: { days: 'dias', hours: 'horas', min: 'minutos', sec: 'segundos' },
  tr: { days: 'gün', hours: 'saat', min: 'dakika', sec: 'saniye' },
  pl: { days: 'dni', hours: 'godziny', min: 'minuty', sec: 'secundy' }
 };

 /* eslint-enable no-multi-spaces */

 if (typeof $.support.transition === 'undefined') {
  $.support.transition = (function () {
   var thisBody = document.body || document.documentElement;
   var thisStyle = thisBody.style;
   var support = thisStyle.transition !== undefined
    || thisStyle.WebkitTransition !== undefined
    || thisStyle.MozTransition !== undefined
    || thisStyle.MsTransition !== undefined
    || thisStyle.OTransition !== undefined;

   return support;
  }());
 }

 $.fn.timeTo = function () {
  var options = {};
  var now = Date.now();
  var j, arg, num, method, time, days, tt, sec, m, t;

  for (j = 0; j < arguments.length; j += 1) {
   arg = arguments[j];
   if (j === 0 && typeof arg === 'string') {
    method = arg;
   } else if (typeof arg === 'object') {
    if (typeof arg.getTime === 'function') {
     // arg is a Date object
     options.timeTo = arg;
    } else {
     // arg is an options object
     options = $.extend(options, arg);
    }
   } else if (typeof arg === 'function') {
    // arg is callback
    options.callback = arg;
   } else {
    num = parseInt(arg, 10);
    // arg is seconds of timeout
    if (!isNaN(num)) {
     options.seconds = num;
    }
   }
  }

  // set time to countdown to
  if (options.timeTo) {
   if (options.timeTo.getTime) {
    // set time as date object
    time = options.timeTo.getTime();
   } else if (typeof options.timeTo === 'number') {
    // set time as integer in millisec
    time = options.timeTo;
   }
   if (time > now) {
    options.seconds = Math.floor((time - now) / 1000);
   } else {
    options.seconds = 0;
   }
  } else if (options.time || !options.seconds) {
   time = options.time;

   if (!time) {
    time = new Date(now);
   }

   if (typeof time === 'object' && time.getTime) {
    options.seconds = (time.getDate() * SECONDS_PER_DAY) + (time.getHours() * SECONDS_PER_HOUR) +
     (time.getMinutes() * 60) + time.getSeconds();
    options.countdown = false;
   } else if (typeof time === 'string') {
    tt = time.split(':');
    sec = 0;
    m = 1;

    while (tt.length) {
     t = tt.pop();
     sec += t * m;
     m *= 60;
    }
    options.seconds = sec;
    options.countdown = false;
   }
  }

  if (options.countdown !== false
    && options.seconds > SECONDS_PER_DAY
    && typeof options.displayDays === 'undefined') {
   days = Math.floor(options.seconds / SECONDS_PER_DAY);
   options.displayDays = (days < 10 && 1) || (days < 100 && 2) || 3;
  } else if (options.displayDays === true) {
   options.displayDays = 3;
  } else if (options.displayDays) {
   options.displayDays = options.displayDays > 0 &#63; Math.floor(options.displayDays) : 3;
  }

  return this.each(function () {
   var $this = $(this);
   var data = $this.data();
   var defs, opt, i, css, language, left, ulhtml, style, dhtml1, dhtml2, dot2, maxWidth,
    captionSize, fsStyleVal, fsStyle, thtml, marginRight, dhtml, $digits, dif, vals, limits;

   if (data.intervalId) {
    clearInterval(data.intervalId);
    data.intervalId = null;
   }

   if (!data.vals) {
    // new clock
    if (data.opt) {
     opt = data.options;
    } else {
     opt = options;
    }

    // clone the defaults object
    defs = Object.keys(defaults).reduce(function (obj, key) {
     if (Array.isArray(defaults[key])) {
      obj[key] = defaults[key].slice(0);
     } else {
      obj[key] = defaults[key];
     }
     return obj;
    }, {});

    data = $.extend(defs, opt);
    data.options = opt;

    data.height = Math.round((data.fontSize * 100) / 93) || data.height;
    data.width = Math.round((data.fontSize * 0.8) + (data.height * 0.13)) || data.width;
    data.displayHours = !!(data.displayDays || data.displayHours);

    css = {
     fontFamily: data.fontFamily
    };
    if (data.fontSize > 0) {
     css.fontSize = data.fontSize + 'px';
    }
    language = data.languages[data.lang] || dictionary[data.lang];

    $this
     .addClass('timeTo')
     .addClass('timeTo-' + data.theme)
     .css(css);

    left = Math.round(data.height / 10);
    ulhtml = '<ul ><li>0</li><li>0</li></ul></div>';
    style = data.fontSize
     &#63; ' '
     : ' ';
    dhtml1 = '<div class="first"' + style + '>' + ulhtml;
    dhtml2 = '<div' + style + '>' + ulhtml;
    dot2 = '<span>:</span>';
    maxWidth = Math.round((data.width * 2) + 3);
    captionSize = data.captionSize || (data.fontSize && Math.round(data.fontSize * 0.43));
    fsStyleVal = captionSize &#63; 'font-size:' + captionSize + 'px;' : '';
    fsStyle = captionSize &#63; ' ' : '';

    thtml = (data.displayCaptions
     &#63; (data.displayHours
      &#63; '<figure >$1<figcaption' + fsStyle + '>'
       + language.hours + '</figcaption></figure>' + dot2
      : '')
      + '<figure >$1<figcaption' + fsStyle + '>' + language.min
      + '</figcaption></figure>' + dot2
      + '<figure >$1<figcaption' + fsStyle + '>' + language.sec
      + '</figcaption></figure>'
     : (data.displayHours &#63; '$1' + dot2 : '') + '$1' + dot2 + '$1'
    ).replace(/\$1/g, dhtml1 + dhtml2);

    if (data.displayDays > 0) {
     marginRight = Math.round(data.fontSize * 0.4 || defaults.gap);
     dhtml = dhtml1;

     for (i = data.displayDays - 1; i > 0; i -= 1) {
      dhtml += i === 1
       &#63; dhtml2.replace('">', 'margin-right:' + marginRight + 'px">')
       : dhtml2;
     }

     if (data.displayDays === 1) {
      dhtml = dhtml.replace('">', 'margin-right:' + marginRight + 'px">');
     }

     thtml = (data.displayCaptions
      &#63; '<figure >$1'
       + '<figcaption >'
       + language.days + '</figcaption></figure>'
      : '$1')
      .replace(/\$1/, dhtml) + thtml;
    }
    $this.html(thtml);
   } else if (method !== 'reset') {
    // exists clock
    $.extend(data, options);
   }

   $digits = $this.find('div');

   if ($digits.length < data.vals.length) {
    dif = data.vals.length - $digits.length;
    vals = data.vals;
    limits = data.limits;

    data.vals = [];
    data.limits = [];
    for (i = 0; i < $digits.length; i += 1) {
     data.vals[i] = vals[dif + i];
     data.limits[i] = limits[dif + i];
    }
    data.iSec = data.vals.length - 1;
    data.iHour = data.vals.length - 5;
   }
   data.sec = data.seconds;
   $this.data(data);

   if (method && methods[method]) {
    methods[method].call($this, data.seconds);
   } else if (data.start) {
    methods.start.call($this, data.seconds);
   } else {
    init.call($this, data.seconds);
   }
  });
 };


 function init(sec, force) {
  var data = this.data();
  var $digits = this.find('ul');
  var isInterval = false;
  var days, rest, hours, minutes, secs, str, i, j, val;

  if (!data.vals || $digits.length === 0) {
   return;
  }

  if (!sec) {
   sec = data.seconds;
  }

  if (data.intervalId) {
   isInterval = true;
   clearTimeout(data.intervalId);
  }


  days = Math.floor(sec / SECONDS_PER_DAY);
  rest = days * SECONDS_PER_DAY;
  hours = Math.floor((sec - rest) / SECONDS_PER_HOUR);

  rest += hours * SECONDS_PER_HOUR;

  minutes = Math.floor((sec - rest) / 60);

  rest += minutes * 60;

  secs = sec - rest;
  str = (days < 100 &#63; '0' + (days < 10 &#63; '0' : '') : '')
   + days + (hours < 10 &#63; '0' : '') + hours + (minutes < 10 &#63; '0' : '')
   + minutes + (secs < 10 &#63; '0' : '') + secs;


  for (i = data.vals.length - 1, j = str.length - 1; i >= 0; i -= 1, j -= 1) {
   val = parseInt(str.substr(j, 1), 10);
   data.vals[i] = val;
   $digits.eq(i).children().html(val);
  }
  if (isInterval || force) {
   data.ttStartTime = Date.now();
   data.intervalId = setTimeout(tick.bind(this), 1000);
   this.data('intervalId', data.intervalId);
  }
 }

 /**
  * Switch specified digit by digit index
  * @param {number} - digit index
  */
 function tick(digit) {
  var me = this;
  var $digits = this.find('ul');
  var data = this.data();
  var n, $ul, $li, step, tickTimeout, timeDiff;

  if (!data.vals || $digits.length === 0) {
   if (data.intervalId) {
    clearTimeout(data.intervalId);
    this.data('intervalId', null);
   }
   if (data.callback) {
    data.callback();
   }
   return;
  }
  if (typeof digit === 'undefined') {
   digit = data.iSec;
  }


  this.data('tickCount', data.tickCount + 1);

  n = data.vals[digit];
  $ul = $digits.eq(digit);
  $li = $ul.children();
  step = data.countdown &#63; -1 : 1;

  $li.eq(1).html(n);
  n += step;


  if (typeof data.step === 'function' && data.tickCount % data.stepCount === 0) { // simplified if-block
   this.data('tickCount', 0); // prevent number overload
   data.step();
  }

  if (digit === data.iSec) {
   tickTimeout = data.tickTimeout;
   timeDiff = Date.now() - data.ttStartTime;

   data.sec += step;

   tickTimeout += (Math.abs(data.seconds - data.sec) * tickTimeout) - timeDiff;

   data.intervalId = setTimeout(tick.bind(this), tickTimeout);
  }

  if (n < 0 || n > data.limits[digit]) {
   if (n < 0) {
    n = data.limits[digit];
    // fix for hours when day changing
    if (digit === data.iHour
     && data.displayDays > 0
     && data.vals[digit - 1] === 0) {
     n = 3;
    }
   } else {
    n = 0;
   }

   if (digit > 0) {
    tick.call(this, digit - 1);
   }
  } else if (!data.countdown // fix for hours when day changing in clock mode
   && digit === data.iHour
   && data.displayDays > 0
   && data.vals[digit - 1] === 2 && data.vals[digit] === 3) {
   n = 0;
   tick.call(this, digit - 1);
  }
  $li.eq(0).html(n);

  if ($.support.transition) {
   $ul.addClass('transition');
   $ul.css({ top: 0 });

   setTimeout(function () {
    $ul.removeClass('transition');
    $li.eq(1).html(n);
    $ul.css({ top: '-' + data.height + 'px' });

    if (step > 0 || digit !== data.iSec) {
     return;
    }

    if (data.sec === data.countdownAlertLimit) {
     $digits.parent().addClass('timeTo-alert');
    }

    if (data.sec === 0) {
     $digits.parent().removeClass('timeTo-alert');

     if (data.intervalId) {
      clearTimeout(data.intervalId);
      me.data('intervalId', null);
     }

     if (typeof data.callback === 'function') {
      data.callback();
     }
    }
   }, 410);
  } else {
   $ul.stop().animate({ top: 0 }, 400, digit !== data.iSec &#63; null : function () {
    $li.eq(1).html(n);
    $ul.css({ top: '-' + data.height + 'px' });

    if (step > 0 || digit !== data.iSec) {
     return;
    }

    if (data.sec === data.countdownAlertLimit) {
     $digits.parent().addClass('timeTo-alert');
    } else if (data.sec === 0) {
     $digits.parent().removeClass('timeTo-alert');

     if (data.intervalId) {
      clearTimeout(data.intervalId);
      me.data('intervalId', null);
     }

     if (typeof data.callback === 'function') {
      data.callback();
     }
    }
   });
  }
  data.vals[digit] = n;
 }

 return $;
}));

index.js部分

var colorArr = ['rgb(255,235,205)', 'rgb(255,240,245)', 'rgb(255,211,155)'];
var problemList = [
 [
 ' 1.一个长方体形状的盒子长、宽、高分别为20厘米、8厘米和2厘米。现在要用一张纸将其六个面完全包裹起来，要求从纸上剪下的部分不得用作贴补。请问这张纸的大小可能是下列哪一个&#63;( )？',
 [
  {
  'selectAnswer': '长25cm，宽17cm',
  'selectScore': '0',
  'name': 'Q1',
  'value': '1'
  },
  {
  'selectAnswer': '长26cm，宽14cm',
  'selectScore': '0',
  'name': 'Q1',
  'value': '2'
  },
  {
  'selectAnswer': '长24cm，宽21cm',
  'selectScore': '5',
  'name': 'Q1',
  'value': '3'
  },
  {
  'selectAnswer': '长24cm，宽14cm',
  'selectScore': '0',
  'name': 'Q1',
  'value': '4'
  }
 ]
 ],
 [
 '2.有A,B,C三个学生，一个出生在北京，一个出生在上海，一个出生在广州。他们中一个学物理专业，一个学数学专业，一个学计算机。其中（1）A不是学物理的，B不是学计算机的；（2）学物理的不出生在上海；（3）学计算机的出生在北京；（4）B不出生在广州。请根据上述条件，判断A的专业（）&#63;',
 [
  {
  'selectAnswer': '物理',
  'selectScore': '0',
  'name': 'Q2',
  'value': '1'
  },
  {
  'selectAnswer': '数学',
  'selectScore': '0',
  'name': 'Q2',
  'value': '2'
  },
  {
  'selectAnswer': '计算机',
  'selectScore': '5',
  'name': 'Q2',
  'value': '3'
  },
  {
  'selectAnswer': '都有可能',
  'selectScore': '0',
  'name': 'Q2',
  'value': '4'
  }
 ]
 ],
 [
 '3.在某次税务检查后，四个工商管理人员各自做出了结论,甲说;”所有个体户都没纳税。”。乙说：”服装个体户陈老板没纳税。”丙说：”个体户不都没税”，丁说：”有的个体户没税”如果四个人中只有一个断定属实，那么以下哪项是真的？（）',
 [
  {
  'selectAnswer': '丁断定属实，但陈老板纳了税。',
  'selectScore': '0',
  'name': 'Q3',
  'value': '1'
  },
  {
  'selectAnswer': '甲断定属实，陈老板没有纳税',
  'selectScore': '0',
  'name': 'Q3',
  'value': '2'
  },
  {
  'selectAnswer': '乙断定属实，陈老板没有纳税。',
  'selectScore': '0',
  'name': 'Q3',
  'value': '3'
  },
  {
  'selectAnswer': '丙断定属实，但陈老板没有纳税。',
  'selectScore': '5',
  'name': 'Q3',
  'value': '4'
  }
 ]
 ],
 [
 '4.找规律 1, 32, 81, 64, 25, ( ), 1',
 [
  {
  'selectAnswer': '5',
  'selectScore': '0',
  'name': 'Q4',
  'value': '1'
  },
  {
  'selectAnswer': '6',
  'selectScore': '5',
  'name': 'Q4',
  'value': '2'
  },
  {
  'selectAnswer': '10',
  'selectScore': '0',
  'name': 'Q4',
  'value': '3'
  },
  {
  'selectAnswer': '12',
  'selectScore': '0',
  'name': 'Q4',
  'value': '4'
  }
 ]
 ]
]
var correctData = [3, 3, 4, 2];//正确题目的序号
var answerArr = [];//存储回答的答案
var scoreArr = [];//存储回答的分数数组
var score = null;//分数
//问题列表渲染
function renderProblem(problemList) {
 var template = '';
 for (var i = 0; i < problemList.length; i++) {
 template += " <li class='testItem'>" +
  "<div class='problem'>" + problemList[i][0] + "</div>" +
  "<div class='selectItem'>";
 for (var j = 0; j < problemList[i][1].length; j++) {
  template += " <div><input type='radio' name='" + problemList[i][1][j].name + "' value='" + problemList[i][1][j].value + "' data-score='" + problemList[i][1][j].selectScore + "'><span>" + problemList[i][1][j].selectAnswer + "</span></div>"
 }
 template += "</div></li>"
 }
 $('.testContent').append(template)
}
renderProblem(problemList);//渲染列表
var list_node = document.getElementsByTagName('li');
for (let i = 0; i < list_node.length; i++) {
 list_node[i].style.backgroundColor = colorArr[i % colorArr.length];
 list_node[i].onclick = function (e) {//点击选择答案
 if (e.target.tagName == 'INPUT') {
  answerArr = [];
  scoreArr = [];

 }
 }
}
//倒计时的插件
$('#countdown-11').timeTo({
 seconds: 1800,
 displayHours: false
});

$('#clock-w-step-cb').timeTo({
 step: function () {
 console.log('Executing every 3 ticks');
 },
 stepCount: 3
});
//提交执行的方法
function submitAnswer() {
 $("input[type='radio']:checked").each(function () {
 answerArr.push(Number($(this).val()));
 // scoreArr.push()
 scoreArr.push(Number($(this)[0].dataset.score))
 });
 for (var i = 0; i < scoreArr.length; i++) {
 score += scoreArr[i]
 }
 console.log(score)
 console.log(answerArr.length)
 if (answerArr.length == correctData.length) {
 if (JSON.stringify(answerArr) === JSON.stringify(correctData)) {
  alert('完全正确，得分为：' + score)
 } else {

  alert('继续努力，得分为：' + score)
 }
 location.reload();
 } else {
 alert('请提交完整的答题')
 }
}

关于JavaScript制作答题评分功能的方法就分享到这里了，希望以上内容可以对大家有一定的帮助，可以学到更多知识。如果觉得文章不错，可以把它分享出去让更多的人看到。

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javascript 答题评分

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