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)：

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：

导入试卷题目HTML

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)

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)

No title...

样式文件(CSS)

/* YahooUI CSS Reset */

body,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; }

table { border-collapse: collapse; border-spacing: 0; }

fieldset,img { border: 0; }

address,caption,cite,code,dfn,em,strong,th,var { font-weight: normal; font-style: normal; }

ol,ul { list-style: none; }

caption,th { text-align: left; }

h1,h2,h3,h4,h5,h6 { font-weight: normal; font-size: 100%; }

q:before,q:after { content:''; }

abbr,acronym { border: 0;}

label { padding: 0; margin: 0; }

/* My css */

.Choices { line-height: 150%; margin: 5px 0; }

.Page { height: 500px; border: solid 1px gray; }

#olThePaper, .Display { padding: 0; width: 500px; }

/* NOTICE: the width of .Display and #olThePaper should be the SAME. */

.Display { float: left; }

#divToolbar { height: 35px; }

#divPrev, #divNext { float: left; width: 100px; height: 30px; border: solid 1px green; background-color: #999999; }

#divPageInfo { float: left; width: 100px; height: 30px; }

#divTimer { float: left; width: 500px; height: 30px; }

/*for debugging... perhaps for non-IE only*/

/**label { outline: dotted 1px red; background-color: gray; }**/

/**div {outline: dashed 1px blue;}**/

下面是重点，TTestPaperProcessor.js：

/**

*

* @param {String} PaperOlId the id value of the ol tags indicating pages.

* @param {String} ProblemClass the css class name for problem area.

* @param {String} DescClass the css class name for description area.

* @param {String} ChoicesClass the css class name for choices area.

* @param {String} LeftPageId the id of the left page.

* @param {String} RightPageId the id of the right page.

* @author ExSystem

*/

function TTestPaperProcessor(PaperOlId, ProblemClass, DescClass, ChoicesClass, LeftPageId, RightPageId) {

this.FPaperOlId = PaperOlId;

this.FProblemClass = ProblemClass;

this.FDescClass = DescClass;

this.FChoicesClass = ChoicesClass;

this.FLeftPageId = LeftPageId;

this.FRightPageId =RightPageId;

$('#' + this.FLeftPageId).html('');

$('#' + this.FRightPageId).html('');

this._FormatProblemOptions();

this._DivideIntoPages();

this.setCurrPage(1);

}

TTestPaperProcessor.prototype = {

FPaperOlId: '', //the id property of the ol tag contains the whole test paper.

FProblemClass: '', //the css class name for problem area.

FDescClass: '', //the css class name for description area.

FChoicesClass: '', //the css class name for choices area.

FLeftPageId: '', //the left page.

FRightPageId: '', //the right page.

CPageClass: 'Page',

FIsDisplayTableSupported: null, //whether the browser is the EVIL M$IE6,7 that does not support display: table(-cell).

FCurrPage: 0, //start from 1, 0 for no page has been displayed yet.

FPageCount: 0, //page count.

// /**

// * Get external css stylesheet info.

// * @param {String} Selector The selector in the css style sheet.

// * @param {String} Property The property name.

// * @return {String} The value of the property, or null for undefined property.

// */

// _GetCssInfo: function(Selector, Property) {

// var mCss = document.styleSheets[0].cssRules || document.styleSheets[0].rules;

// for (var mIndex = 0; mIndex < mCss.length; ++mIndex) {

// if (mCss[mIndex].selectorText.toLowerCase() == Selector) {

// return mCss[mIndex].style[Property];

// }

// }

// return null;

// },

/**

* @return {Boolean}

*/

_IsDisplayTableSupported: function() {

if (this.FIsDisplayTableSupported != null) {

return this.FIsDisplayTableSupported;

}

this.FIsDisplayTableSupported = !(jQuery.browser.msie && jQuery.browser.version < 8.0);

return this.FIsDisplayTableSupported;

},

/**

* Formats radios and checkboxes for the Choices quiz.

*/

_FormatProblemOptions: function() {

var mThis = this;

var mSelector = '.' + this.FProblemClass + ' .' + this.FChoicesClass;

$(mSelector).each(function() {

//Rearrange the options for each problem ordered by offsetWidth of the label tag.

var mLabels = new Array();

mLabels = jQuery.makeArray($('label', this));

mLabels.sort(function(First, Second) {

return $(Second).outerWidth(true) > $(First).outerWidth(true);

});

$(mLabels).appendTo(this);

//Layout the options into the appropreate form.

var mSlots = -1; //Force to create a new row, inside the while() loop.

var mSlotWidth = $(mSelector).width() / 4.0;

var mCellSize = 0;

if (mThis._IsDisplayTableSupported()) {

while (mLabels.length > 0) {

//alert($(mLabels[0]).outerWidth(true) + '::' + $(mLabels[0]).outerHeight(true) + '::' + $(mLabels[0]).html());

if (mSlots <= 0) { //If no empty slot, create a new row.

mCurrRow = $('

mCurrRow.appendTo(this);

mSlots = 4;

mCellSize = 0;

var mRealCellWidth = $(mLabels[0]).outerWidth(true);

if (mRealCellWidth < mSlotWidth) {

mCellSize = 1;

}

if (mRealCellWidth >= mSlotWidth && mRealCellWidth < mSlotWidth * 2) {

mCellSize = 2;

}

if (mRealCellWidth >= mSlotWidth * 2) {

mCellSize = 4;

}

}

mSlots -= mCellSize;

if (mSlots >= 0) { //If empty slots exists, put the cell into the row.

mLabel = mLabels.shift();

$(mLabel).addClass('___cell');

$(mLabel).css('display', 'table-cell');

$(mLabel).appendTo(mCurrRow);

}

}

$('.___table').each(function() { //Align all the tables and cells.

$(this).css('width', '100%');

var mCellWidth = 100 / $('.___cell', this).length;

$('.___cell', this).css('width', mCellWidth + '%');

});

}

else { // for the evil M$IE6, use table, tr, td tags.

while (mLabels.length > 0) {

if (mSlots <= 0) { //If no empty slot, create a new row.

mCurrRow = $('

');

mRow = $('

');

mRow.appendTo(mCurrRow);

mCurrRow.appendTo(this);

mSlots = 4;

mCellSize = 0;

var mRealCellWidth = $(mLabels[0]).attr('offsetWidth');

//The EVIL IE only:

//be sure to use this css reset: table { border-collapse: collapse; border-spacing: 0; }

//otherwise, 2 lines will be occupied by some long problem options instead of 1.

//or use this code instead: var mRealCellWidth = $(mLabels[0]).attr('offsetWidth') * 1.3;

if (mRealCellWidth <= mSlotWidth) {

mCellSize = 1;

}

if (mRealCellWidth > mSlotWidth && mRealCellWidth <= mSlotWidth * 2) {

mCellSize = 2;

}

if (mRealCellWidth > mSlotWidth * 2) {

mCellSize = 4;

}

}

mSlots -= mCellSize;

if (mSlots >= 0) { //If empty slots exists, put the cell into the row.

mLabel = mLabels.shift();

mCell = $('

');

$(mLabel).appendTo(mCell);

mCell.appendTo($('tr', mCurrRow)[0]);

}

}

$('.___table').each(function() { //Align all the tables and cells.

$(this).css('width', '100%');

var mCellWidth = 100 / $('tbody tr .___cell', this).length;

$('tbody tr .___cell', this).css('width', mCellWidth + '%');

});

}

});

},

/**

* Create a new page, and add it to the paper.

* @return {jQuery} the new page.

*/

_CreateNewPage: function() {

++this.FPageCount;

mPage = $('

mPage.appendTo($('#' + this.FPaperOlId));

return mPage;

},

/**

*

* @param {Number} PageNumber

* @return {jQuery}

*/

_GetPage: function(PageNumber) {

if (PageNumber < 1 || PageNumber > this.FPageCount) {

throw new Error('invalid page number: ' + PageNumber + '.');

}

return $('#___page_' + PageNumber);

},

/**

*

*/

_DivideIntoPages: function() {

var mProblems = $('.' + this.FProblemClass + ', .' + this.FDescClass);

var mProblemsCount = mProblems.length;

var mCurrPage = this._CreateNewPage();

//var mPageHeight = mCurrPage.attr('offsetHeight'); chrome: sometimes 0. safari: always 0, IF PUTTED IN $(window).ready().

var mPageHeight = mCurrPage.outerHeight(true); //the same as the code above. FIX: PUT IT INTO $(window).load().

var mUsedPageHeight = 0;

for (var mCurrProblem = 0; mCurrProblem < mProblemsCount; ++mCurrProblem) {

if (mUsedPageHeight + $(mProblems[mCurrProblem]).outerHeight(true) > mPageHeight) {

mCurrPage.hide();

mCurrPage = this._CreateNewPage();

mPageHeight = mCurrPage.outerHeight(true);

mUsedPageHeight = 0;

}

$(mProblems[mCurrProblem]).appendTo(mCurrPage);

mUsedPageHeight += $(mProblems[mCurrProblem]).outerHeight(true);

}

mCurrPage.hide();

},

/**

* Get the current page of the left side, started from 1.

* @return {Number} The current page.

*/

getCurrPage: function() {

if (this.FPageCount == 0) {

throw new Error('No page has been created yet.');

}

return this.FCurrPage;

},

/**

* Trun to a specific page in the left side.

* @param {Number} Value The page number.

*/

setCurrPage: function(Value) {

if (Value < 1 || Value > this.FPageCount) {

throw new Error('No such page: ' + Value + '.');

}

this.FCurrPage = parseInt(Value / 2) * 2 + 1; // to get an odd number.

$('#' + this.FLeftPageId + ' .' + this.CPageClass).hide();

$('#' + this.FRightPageId + ' .' + this.CPageClass).hide();

if (this.FCurrPage >= 0) {

$('#___page_' + this.FCurrPage).appendTo($('#' + this.FLeftPageId));

$('#___page_' + this.FCurrPage).show('fast');

if (this.FCurrPage < this.FPageCount) {

++this.FCurrPage;

$('#___page_' + this.FCurrPage).appendTo($('#' + this.FRightPageId));

$('#___page_' + this.FCurrPage).show('fast');

--this.FCurrPage;

}

}

},

/**

* @retrun {Number}

*/

getPageCount: function() {

return this.FPageCount;

},

/**

*

*/

Prev: function() {

this.setCurrPage(this.FCurrPage - 2);

},

/**

*

*/

Next: function() {

this.setCurrPage(this.FCurrPage + 2);

}

};

//client code goes here...

$(window).load(function() {

var obj = new TTestPaperProcessor('olThePaper', 'Problem', 'Desc', 'Choices', 'divLeft', 'divRight');

$('#divPrev').click(function() {

try {

obj.Prev();

$('#divPageInfo').text(obj.getCurrPage() + ' of ' + obj.getPageCount());

}

catch (e) {

alert('No such page!');

}

});

$('#divNext').click(function() {

try {

obj.Next();

$('#divPageInfo').text(obj.getCurrPage() + ' of ' + obj.getPageCount());

}

catch (e) {

alert('No such page!');

}

});

//USAGE: http://keith-wood.name/countdown.html

function TimeUp() {

$('#formPaper').submit();

}

$('#divTimer').countdown({

until: '+90m',

compact: true,

format: 'HMS',

description: '',

onExpiry: TimeUp

});

$('#divPageInfo').text(obj.getCurrPage() + ' of ' + obj.getPageCount());

});

嘿嘿，其实这是一个俺们学校一位博导老师的项目的一部分～～托给我做了。

测试代码打包http://xiazai.jb51.net/201101/yuanma/TestPaperProcessor.rar