jQuery试卷自动排版系统

需求

根据提供的试卷题目（是一个干净的只有“数据”的HTML网页）生成一份多页的试卷，用户能执行翻页、具有答题时间限制，展示给用户的试卷中题目需要占用尽量少的空间（比如选择题中把两条较短的选项由两行合并到一行）、同一道题目不要跨页面显示以方便答题者，管理员能够改变试卷的样式（字体、颜色、行距、页面边距，像字处理软件一样……），题目之间可以插入一些说明性的文字（比如告知答题者作答的须知等等）。题目提干、选择题的选项、说明文字可以包含多媒体信息（文字、图片、列表、表格、视频等等……）。选择题选项数目不限、单选多选不限。翻页要有可订制的动画效果

提供的试卷样板类似如下（Input）：

01<ol id="olThePaper">
02    <div class="Desc">选择题：说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。</div>
03    <div class="Problem" id="1">
04        <li>1.你认为怎样的老师是好老师？</li>
05        <div class="Choices">
06            <label><input type="radio" name="prob1" value="A" />和学生平等相处，能全面满足学生各种需要</label>
07            <label><input type="radio" name="prob1" value="B" />所在教学班的成绩优于其他平行班</label>
08            <label><input type="radio" name="prob1" value="C" />严格管理学生、所带的班级班风良好</label>
09            <label><input type="radio" name="prob1" value="D" />父母般地关心学生的生活和情绪状态</label>
10        </div>
11    </div>
12    <div class="Problem" id="2">
13        <li>2.一位有15年教龄的英语教师，教了多年高三，可谓学校的核心骨干。一次接受邀请到外校介绍教学经验，台下有老师发表了观点并问到几个英语教法发面的问题，一下子把她给卡住了。这是因为</li>
14        <div class="Choices">
15            <label><input type="radio" name="prob2" value="A" />她最近工作太累，注意力不够集中。</label>
16            <label><input type="radio" name="prob2" value="B" />提问老师的观点和她的有很大不同。</label>
17            <label><input type="radio" name="prob2" value="C" />由于长时间在教学一线拼搏，她对教学理论问题的关注度不高。</label>
18            <label><input type="radio" name="prob2" value="D" />对学科教学的归纳和思考少，一时加工不过来。</label>
19        </div>
20    </div>
21    <div class="Problem" id="3">
22        <li>3.哪张图片最好看？</li>
23        <div class="Choices">
24            <label><input type="radio" name="prob3" value="A" />这一张<img src="img1.png" height="300px"width="400px" alt="img1"/>好看。</label>
25            <label><input type="radio" name="prob3" value="B" />这一张<img src="img2.png" height="300px"width="400px" alt="img2"/>好看。</label>
26            <label><input type="radio" name="prob3" value="C" />这一张<img src="img3.png" height="300px"width="400px" alt="img3"/>好看。</label>
27            <label><input type="radio" name="prob3" value="D" />这一张<img src="img4.png" height="300px"width="400px" alt="img4"/>好看。</label>
28            <label><input type="radio" name="prob3" value="E" />不知道。</label>
29        </div>
30    </div>
31    <div class="Desc">填空题和选择题：一大堆的说明文字。一大堆的说明文字。一大堆的说明文字。一大堆的说明文字。一大堆的说明文字。</div>
32    <div class="Problem" id="4">
33        <li>4.床前明月光，<input type="text" name="prob4" /></li>
34    </div>
35    <div class="Problem" id="5">
36        <li>5.你认为怎样的老师是好老师？</li>
37        <div class="Choices">
38            <label><input type="checkbox" name="prob6" value="D" />和</label>
39            <label><input type="checkbox" name="prob6" value="A" />所</label>
40            <label><input type="checkbox" name="prob6" value="B" />严</label>
41            <label><input type="checkbox" name="prob6" value="C" />父</label>
42            <label><input type="checkbox" name="prob6" value="E" />和班的成绩班的成绩班的成绩班的成绩班的成绩</label>
43            <label><input type="checkbox" name="prob6" value="F" />所班的成绩班的成绩班的成绩</label>
44            <label><input type="checkbox" name="prob6" value="G" />严班的班的成绩班的成绩班的成绩班的成绩</label>
45            <label><input type="checkbox" name="prob6" value="H" />啊</label>
46        </div>
47    </div>
48</ol>

思路

面对这种需求该怎么办呢？使用JavaScript了，看来。后来决定用jQuery，Aptana作IDE（虽然jQuery支持库在Windows上死活装不上去，换了个OS就好了，奇怪），格式么就用CSS了。

具体步骤：

  1. 导入试卷题目HTML
  2. 对所有选择题进行排版，把一行划分为四个位置，使选项尽量适应一个位置、两个位置或四个位置（也就是一行四项、一行两项或者一行一项的效果）
  3. 对所有题目进行分页

思路还是清晰的，但是由于浏览器众多，还是比较麻烦的，并且我是新手，没接触过jQuery之前……

实现

页面文件（和例子不同，但是格式一样的）

 
001<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
002<html xmlns="http://www.w3.org/1999/xhtml">
003    <head>
004        <title>No title...</title>
005        <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
006        <script language="JavaScript" src="lib/jquery/jquery-1.4.2.js" type="text/javascript"></script>
007        <script language="JavaScript" src="lib/countdown/jquery.countdown.pack.js" type="text/javascript"></script>
008        <script language="JavaScript" src="TestPaperProcessor.js" type="text/javascript"></script>
009        <link href="style.css" rel="stylesheet" type="text/css" />
010    </head>
011    <body>
012        <div id="divToolbar">
013            <div id="divPrev">PrevPage</div>
014            <div id="divNext">NextPage</div>
015            <div id="divPageInfo">Loading the test...</div>
016            <div id="divTimer"></div>
017        </div>
018        <form id="formPaper" action="demo.html" method="post" accept-charset="utf-8">
019            <ul>
020                <div class="Display" id="divLeft">
021                    left<!--the left page-->
022                </div>
023                <div class="Display" id="divRight">
024                    right<!--the right page-->
025                </div>
026            </ul>
027            <ol id="olThePaper">
028                <div class="Desc">选择题：说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。说明文字。</div>
029                <div class="Problem" id="1">
030                    <li>1你认为怎样的老师是好老师？</li>
031                    <div class="Choices">
032                        <label>
033                            <input type="radio" name="prob1" value="D" />和学生平等相处，能全面满足学生各种需要
034                        </label>
035                        <label>
036                            <input type="radio" name="prob1" value="A" />所在教学班的成绩优于其他平行班
037                        </label>
038                        <label>
039                            <input type="radio" name="prob1" value="B" />严格管理学生/所带的班级班风良好
040                        </label>
041                        <label>
042                            <input type="radio" name="prob1" value="C" />父母般地关心学生的生活和情绪状态
043                        </label>
044                    </div>
045                </div>
046                <div class="Problem" id="2">
047                    <li>2你认为怎样的老师是好老师？</li>
048                    <div class="Choices">
049                        <label>
050                            <input type="radio" name="prob2" value="D" />和学生平jlsdjklsdf生各种需要
051                        </label>
052                        <label>
053                            <input type="radio" name="prob2" value="A" />所
054                        </label>
055                        <label>
056                            <input type="radio" name="prob2" value="B" />严格好
057                        </label>
058                        <label>
059                            <input type="radio" name="prob2" value="C" />父母关心学生的生活和情绪状态
060                        </label>
061                    </div>
062                </div>
063                <div class="Problem" id="3">
064                    <li>3你认为怎样的老师是好老师？</li>
065                    <div class="Choices">
066                        <label>
067                            <input type="radio" name="prob3" value="D" />和学生平等相处，能全面满足学生各种需要
068                        </label>
069                        <label>
070                            <input type="radio" name="prob3" value="A" />所在教学班的成绩优于其他平行班
071                        </label>
072                        <label>
073                            <input type="radio" name="prob3" value="B" />严格管理学生/所带的班级班风良好
074                        </label>
075                        <label>
076                            <input type="radio" name="prob3" value="C" />父母般地关心学生的生活和情绪状态
077                        </label>
078                    </div>
079                </div>
080                <div class="Problem" id="4">
081                    <li>4你认为怎样的老师是好老师？</li>
082                    <div class="Choices">
083                        <label>
084                            <input type="radio" name="prob4" value="D" />和学生平等相处，能全面满足学和学生平等相处，能全面满足学和学生平等相处，能全面满足学和学生平等相处，能全面满足学和学生平等相处，能全面满足学和学生平等相处，能全面满足学和学生平等相处，能全面满足学和学生平等相处，能全面满足学和学生平等相处，能全面满足学生各种需要
085                        </label>
086                        <label>
087                            <input type="radio" name="prob4" value="A" />所在教学班的成绩优于其他平行班
088                        </label>
089                        <label>
090                            <input type="radio" name="prob4" value="B" />严格管理学生/所带的班级班风良好
091                        </label>
092                        <label>
093                            <input type="radio" name="prob4" value="C" />父母般地关心学生的生活和情绪状态
094                        </label>
095                    </div>
096                </div>
097                <div class="Desc">还是选择题：一大堆的说明文字。一大堆的说明文字。一大堆的说明文字。一大堆的说明文字。一大堆的说明文字。</div>
098                <div class="Problem" id="10">
099                    <li>5你认为怎样的老师是好老师？</li>
100                    <div class="Choices">
101                        <label>
102                            <input type="radio" name="prob5" value="D" />和10学生平等相处，能全面满足学生各种需要
103                        </label>
104                        <label>
105                            <input type="radio" name="prob5" value="A" />所10在教学班的成绩优于其他平行班
106                        </label>
107                        <label>
108                            <input type="radio" name="prob5" value="B" />严10jhjhjhjhkljlkjjkljjkjjkllkjlkjljkjljlkj格管文字
109                        </label>
110                        <label>
111                            <input type="radio" name="prob5" value="C" />父10母般地关心学生的生活和情绪状态
112                        </label>
113                    </div>
114                </div>
115                <div class="Problem" id="5">
116                    <li>5你认为怎样的老师是好老师？</li>
117                    <div class="Choices">
118                        <label>
119                            <input type="radio" name="prob5" value="D" />和学生平等相处，能全面满足学生各种需要
120                        </label>
121                        <label>
122                            <input type="radio" name="prob5" value="A" />所在教学班的成绩优于其他平行班
123                        </label>
124                        <label>
125                            <input type="radio" name="prob5" value="B" />严jhjhjhjhkljlkjjkljjkjjkllkjlkjljkjljlkj格管<img src="aaaa9.jpg" height="300px" width="400px" alt="pic"/>文字
126                        </label>
127                        <label>
128                            <input type="radio" name="prob5" value="C" />父母般地关心学生的生活和情绪状态
129                        </label>
130                    </div>
131                </div>
132                <div class="Problem" id="6">
133                    <li>6你认为怎样的老师是好老师？</li>
134                    <div class="Choices">
135                        <label>
136                            <input type="radio" name="prob6" value="D" />和
137                        </label>
138                        <label>
139                            <input type="radio" name="prob6" value="A" />所
140                        </label>
141                        <label>
142                            <input type="radio" name="prob6" value="B" />严
143                        </label>
144                        <label>
145                            <input type="radio" name="prob6" value="C" />父
146                        </label>
147                        <label>
148                            <input type="radio" name="prob6" value="E" />和班的成绩班的成绩班的成绩班的成绩班的成绩
149                        </label>
150                        <label>
151                            <input type="radio" name="prob6" value="F" />所班的成绩班的成绩班的成绩
152                        </label>
153                        <label>
154                            <input type="radio" name="prob6" value="G" />严班的班的成绩班的成绩班的成绩班的成绩
155                        </label>
156                        <label>
157                            <input type="radio" name="prob6" value="H" />父
158                        </label>
159                    </div>
160                </div>
161            </ol>
162        </form>
163    </body>
164</html>

样式文件（CSS）

 
01/* YahooUI CSS Reset */
02body,div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,form,fieldset,input,textarea,p,blockquote,th,td { padding: 0; margin: 0; } 
03table { border-collapse: collapse; border-spacing: 0; } 
04fieldset,img { border: 0; } 
05address,caption,cite,code,dfn,em,strong,th,var { font-weight: normal; font-style: normal; } 
06ol,ul { list-style: none; } 
07caption,th { text-align: left; } 
08h1,h2,h3,h4,h5,h6 { font-weight: normal; font-size: 100%; } 
09q:before,q:after { content:''; } 
10abbr,acronym { border: 0;}
11  
12label { padding: 0; margin: 0; }
13  
14/* My css */
15.Choices { line-height: 150%; margin: 5px 0; }
16.Page { height: 500px; border: solid 1px gray; }
17#olThePaper, .Display { padding: 0; 500px; } 
18/* NOTICE: the width of .Display and #olThePaper should be the SAME. */
19.Display { float: left; }
20  
21#divToolbar { height: 35px; }
22#divPrev, #divNext { float: left; 100px; height: 30px; border: solid 1px green; background-color: #999999; }
23#divPageInfo { float: left; 100px; height: 30px; }
24#divTimer { float: left; 500px; height: 30px; }
25  
26  
27/*for debugging... perhaps for non-IE only*/
28/**label { outline: dotted 1px red; background-color: gray; }**/
29/**div {outline: dashed 1px blue;}**/

下面是重点，TTestPaperProcessor.js：

 
001/**
002 *
003 * @param {String} PaperOlId    the id value of the ol tags indicating pages.
004 * @param {String} ProblemClass the css class name for problem area.
005 * @param {String} DescClass    the css class name for description area.
006 * @param {String} ChoicesClass the css class name for choices area.
007 * @param {String} LeftPageId   the id of the left page.
008 * @param {String} RightPageId  the id of the right page.
009 * @author ExSystem<exsystemchina@gmail.com>
010 */
011function TTestPaperProcessor(PaperOlId, ProblemClass, DescClass, ChoicesClass, LeftPageId, RightPageId) {
012    this.FPaperOlId = PaperOlId;
013    this.FProblemClass = ProblemClass;
014    this.FDescClass = DescClass;
015    this.FChoicesClass = ChoicesClass;
016    this.FLeftPageId = LeftPageId;
017    this.FRightPageId =RightPageId;
018    $('#' + this.FLeftPageId).html('');
019    $('#' + this.FRightPageId).html('');
020    this._FormatProblemOptions();
021    this._DivideIntoPages();
022    this.setCurrPage(1);
023}
024  
025TTestPaperProcessor.prototype = {
026    FPaperOlId: '', //the id property of the ol tag contains the whole test paper.
027    FProblemClass: '', //the css class name for problem area.
028    FDescClass: '', //the css class name for description area.
029    FChoicesClass: '', //the css class name for choices area.
030    FLeftPageId: '', //the left page.
031    FRightPageId: '', //the right page.
032    CPageClass: 'Page',
033    FIsDisplayTableSupported: null, //whether the browser is the EVIL M$IE6,7 that does not support display: table(-cell).
034    FCurrPage: 0, //start from 1, 0 for no page has been displayed yet.
035    FPageCount: 0, //page count.
036//    /**
037//     * Get external css stylesheet info.
038//     * @param {String} Selector   The selector in the css style sheet.
039//     * @param {String} Property   The property name.
040//     * @return    {String}            The value of the property, or null for undefined property.
041//     */
042//    _GetCssInfo: function(Selector, Property) {
043//        var mCss = document.styleSheets[0].cssRules || document.styleSheets[0].rules;
044//        for (var mIndex = 0; mIndex < mCss.length; ++mIndex) {
045//            if (mCss[mIndex].selectorText.toLowerCase() == Selector) {
046//                return mCss[mIndex].style[Property];
047//            }
048//        }
049//        return null;
050//    },
051      
052    /**
053     * @return  {Boolean}
054     */
055    _IsDisplayTableSupported: function() {
056        if (this.FIsDisplayTableSupported != null) {
057            return this.FIsDisplayTableSupported;
058        }
059          
060        this.FIsDisplayTableSupported = !(jQuery.browser.msie && jQuery.browser.version < 8.0);
061        return this.FIsDisplayTableSupported;
062    },
063      
064    /**
065     * Formats radios and checkboxes for the Choices quiz.
066     */
067    _FormatProblemOptions: function() {
068        var mThis = this;
069        var mSelector = '.' + this.FProblemClass + ' .' + this.FChoicesClass;
070        $(mSelector).each(function() {
071            //Rearrange the options for each problem ordered by offsetWidth of the label tag.
072            var mLabels = new Array();
073            mLabels = jQuery.makeArray($('label', this));
074            mLabels.sort(function(First, Second) {
075                return $(Second).outerWidth(true) > $(First).outerWidth(true);
076            });
077            $(mLabels).appendTo(this);
078              
079            //Layout the options into the appropreate form.
080            var mSlots = -1; //Force to create a new row, inside the while() loop.
081            var mSlotWidth = $(mSelector).width() / 4.0;
082            var mCellSize = 0;
083            if (mThis._IsDisplayTableSupported()) {
084                while (mLabels.length > 0) {
085                    //alert($(mLabels[0]).outerWidth(true) + '::' + $(mLabels[0]).outerHeight(true) + '::' + $(mLabels[0]).html());
086                    if (mSlots <= 0) { //If no empty slot, create a new row.
087                        mCurrRow = $('<div class="___table" style="display: table;"></div>');
088                        mCurrRow.appendTo(this);
089                        mSlots = 4;
090                        mCellSize = 0;
091                          
092                        var mRealCellWidth = $(mLabels[0]).outerWidth(true);
093                        if (mRealCellWidth < mSlotWidth) {
094                            mCellSize = 1;
095                        }
096                        if (mRealCellWidth >= mSlotWidth && mRealCellWidth < mSlotWidth * 2) {
097                            mCellSize = 2;
098                        }
099                        if (mRealCellWidth >= mSlotWidth * 2) {
100                            mCellSize = 4;
101                        }
102                    }
103                    mSlots -= mCellSize;
104                    if (mSlots >= 0) { //If empty slots exists, put the cell into the row.
105                        mLabel = mLabels.shift();
106                        $(mLabel).addClass('___cell');
107                        $(mLabel).css('display', 'table-cell');
108                        $(mLabel).appendTo(mCurrRow);
109                    }
110                }
111                $('.___table').each(function() { //Align all the tables and cells. 
112                    $(this).css('width', '100%');
113                    var mCellWidth = 100 / $('.___cell', this).length;
114                    $('.___cell', this).css('width', mCellWidth + '%');
115                });
116            }
117            else { // for the evil M$IE6, use table, tr, td tags.
118                while (mLabels.length > 0) {
119                    if (mSlots <= 0) { //If no empty slot, create a new row.
120                        mCurrRow = $('<table class="___table" cellspacing="0" cellpadding="0"></table>');
121                        mRow = $('<tr></tr>');
122                        mRow.appendTo(mCurrRow);
123                        mCurrRow.appendTo(this);
124                        mSlots = 4;
125                        mCellSize = 0;
126                          
127                        var mRealCellWidth = $(mLabels[0]).attr('offsetWidth');
128                        //The EVIL IE only:
129                        //be sure to use this css reset: table { border-collapse: collapse; border-spacing: 0; }
130                        //otherwise, 2 lines will be occupied by some long problem options instead of 1. 
131                        //or use this code instead: var mRealCellWidth = $(mLabels[0]).attr('offsetWidth') * 1.3;
132                        if (mRealCellWidth <= mSlotWidth) {
133                            mCellSize = 1;
134                        }
135                        if (mRealCellWidth > mSlotWidth && mRealCellWidth <= mSlotWidth * 2) {
136                            mCellSize = 2;
137                        }
138                        if (mRealCellWidth > mSlotWidth * 2) {
139                            mCellSize = 4;
140                        }
141                    }
142                    mSlots -= mCellSize;
143                    if (mSlots >= 0) { //If empty slots exists, put the cell into the row.
144                        mLabel = mLabels.shift();
145                        mCell = $('<td class="___cell"></td>');
146                        $(mLabel).appendTo(mCell);
147                        mCell.appendTo($('tr', mCurrRow)[0]);
148                    }
149                }
150                $('.___table').each(function() { //Align all the tables and cells. 
151                    $(this).css('width', '100%');
152                    var mCellWidth = 100 / $('tbody tr .___cell', this).length;
153                    $('tbody tr .___cell', this).css('width', mCellWidth + '%');
154                });
155            }
156        });
157    },
158      
159    /**
160     * Create a new page, and add it to the paper.
161     * @return  {jQuery}    the new page.
162     */
163    _CreateNewPage: function() {
164        ++this.FPageCount;
165          
166        mPage = $('<div class="' + this.CPageClass + '" id="___page_' + this.FPageCount + '"></div>');
167        mPage.appendTo($('#' + this.FPaperOlId));
168          
169        return mPage;
170    },
171      
172    /**
173     *
174     * @param {Number} PageNumber
175     * @return  {jQuery}
176     */
177    _GetPage: function(PageNumber) {
178        if (PageNumber < 1 || PageNumber > this.FPageCount) {
179            throw new Error('invalid page number: ' + PageNumber + '.');
180        }
181        return $('#___page_' + PageNumber);
182    },
183      
184    /**
185     *
186     */
187    _DivideIntoPages: function() {
188        var mProblems = $('.' + this.FProblemClass + ', .' + this.FDescClass);
189        var mProblemsCount = mProblems.length;
190        var mCurrPage = this._CreateNewPage();
191        //var mPageHeight = mCurrPage.attr('offsetHeight'); chrome: sometimes 0. safari: always 0, IF PUTTED IN $(window).ready().
192        var mPageHeight = mCurrPage.outerHeight(true); //the same as the code above. FIX: PUT IT INTO $(window).load().
193        var mUsedPageHeight = 0;
194        for (var mCurrProblem = 0; mCurrProblem < mProblemsCount; ++mCurrProblem) {
195            if (mUsedPageHeight + $(mProblems[mCurrProblem]).outerHeight(true) > mPageHeight) {
196                mCurrPage.hide();
197                mCurrPage = this._CreateNewPage();
198                mPageHeight = mCurrPage.outerHeight(true);
199                mUsedPageHeight = 0;
200            }
201            $(mProblems[mCurrProblem]).appendTo(mCurrPage);
202            mUsedPageHeight += $(mProblems[mCurrProblem]).outerHeight(true);
203        }
204        mCurrPage.hide();
205    },
206    /**
207     * Get the current page of the left side, started from 1.
208     * @return  {Number}    The current page.
209     */
210    getCurrPage: function() {
211        if (this.FPageCount == 0) {
212            throw new Error('No page has been created yet.');
213        }
214        return this.FCurrPage;
215    },
216    /**
217     * Trun to a specific page in the left side.
218     * @param {Number}  Value   The page number.
219     */
220    setCurrPage: function(Value) {
221        if (Value < 1 || Value > this.FPageCount) {
222            throw new Error('No such page: ' + Value + '.');
223        }
224        this.FCurrPage = parseInt(Value / 2) * 2 + 1; // to get an odd number.
225        $('#' + this.FLeftPageId + ' .' + this.CPageClass).hide();
226        $('#' + this.FRightPageId + ' .' + this.CPageClass).hide();
227        if (this.FCurrPage >= 0) {
228            $('#___page_' + this.FCurrPage).appendTo($('#' + this.FLeftPageId));
229            $('#___page_' + this.FCurrPage).show('fast');
230            if (this.FCurrPage < this.FPageCount) {
231                ++this.FCurrPage;
232                $('#___page_' + this.FCurrPage).appendTo($('#' + this.FRightPageId));
233                $('#___page_' + this.FCurrPage).show('fast');
234                --this.FCurrPage;
235            }
236        }
237    },
238    /**
239     * @retrun {Number}
240     */
241    getPageCount: function() {
242        return this.FPageCount;
243    },
244    /**
245     *
246     */
247    Prev: function() {
248        this.setCurrPage(this.FCurrPage - 2);
249    },
250    /**
251     *
252     */
253    Next: function() {
254        this.setCurrPage(this.FCurrPage + 2);
255    }
256};
257  
258//client code goes here...
259$(window).load(function() {
260    var obj = new TTestPaperProcessor('olThePaper', 'Problem', 'Desc', 'Choices', 'divLeft', 'divRight');
261  $('#divPrev').click(function() {
262        try {
263            obj.Prev();
264            $('#divPageInfo').text(obj.getCurrPage() + ' of ' + obj.getPageCount());
265        } 
266    catch (e) {
267        alert('No such page!');
268    }
269  });
270  $('#divNext').click(function() {
271    try {
272        obj.Next();
273      $('#divPageInfo').text(obj.getCurrPage() + ' of ' + obj.getPageCount());
274    } 
275    catch (e) {
276        alert('No such page!');
277    }
278    });
280    function TimeUp() {
281        $('#formPaper').submit();
282    }
283    $('#divTimer').countdown({
284        until: '+90m',
285    compact: true,
286    format: 'HMS',
287    description: '',
288    onExpiry: TimeUp
289    });
290    $('#divPageInfo').text(obj.getCurrPage() + ' of ' + obj.getPageCount());
291});
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原文地址：https://www.cnblogs.com/top5/p/1929066.html