css如何实现多行文本时,内容溢出,出现省略号

一:单行文本出现省略号:

.oneLine{
                white-space: nowrap;
                text-overflow: ellipsis;
                overflow: hidden;
                width: 100px;
                line-height: 30px;
                border: 1px solid red;
            }

<div class="oneLine">
    你好啊 我是实现单行文本的例子,你看到了吗
</div>

二:多行文本出现省略号

1.WebKit浏览器可以使用.

.a{
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    border: 1px solid black;
    width: 200px;
    height: 40px;
    line-height: 20px;
}

<div class="a">
    you are grunt,he  adf dfficn wong .sdeb guoyansi sdfe io f guoyansi  guoyniaon gpngibn snbieng sinbrin
</div>

这种写法存在兼容问题不建议这么写.

2.纯css的兼容浏览器写法.

.b{
    position: relative;
    overflow: hidden;
    border: 1px solid black;
    width: 100%;
}
.b::after{
     content: "...";
     font-weight: bold;
     position: absolute;
     bottom: 0;
     right: 0;
     left: 60%;
     background-color: white;
     text-align: left;
     text-indent: 10px;
}

<div class="b">
    you are grunt,he  adf dfficn wong .sdeb guoyansi sdfe io f guoyansi  guoyniaon gpngibn snbieng sinbrin
</div>

这种写法有个弊端,他始终都会有省略号,不管文字是否超出.

三.js实现文本溢出的省略号.

1.jquery.dotdotdot

js官网:http://dotdotdot.frebsite.nl/

jquery.dotdotdot.js

/*
 *    jQuery dotdotdot 1.7.4
 *
 *    Copyright (c) Fred Heusschen
 *    www.frebsite.nl
 *
 *    Plugin website:
 *    dotdotdot.frebsite.nl
 *
 *    Licensed under the MIT license.
 *    http://en.wikipedia.org/wiki/MIT_License
 */

(function( $, undef )
{
    if ( $.fn.dotdotdot )
    {
        return;
    }

    $.fn.dotdotdot = function( o )
    {
        if ( this.length == 0 )
        {
            $.fn.dotdotdot.debug( 'No element found for "' + this.selector + '".' );
            return this;
        }
        if ( this.length > 1 )
        {
            return this.each(
                function()
                {
                    $(this).dotdotdot( o );
                }
            );
        }


        var $dot = this;
        var orgContent    = $dot.contents();

        if ( $dot.data( 'dotdotdot' ) )
        {
            $dot.trigger( 'destroy.dot' );
        }

        $dot.data( 'dotdotdot-style', $dot.attr( 'style' ) || '' );
        $dot.css( 'word-wrap', 'break-word' );
        if ($dot.css( 'white-space' ) === 'nowrap')
        {
            $dot.css( 'white-space', 'normal' );
        }

        $dot.bind_events = function()
        {
            $dot.bind(
                'update.dot',
                function( e, c )
                {
                    $dot.removeClass("is-truncated");
                    e.preventDefault();
                    e.stopPropagation();

                    switch( typeof opts.height )
                    {
                        case 'number':
                            opts.maxHeight = opts.height;
                            break;

                        case 'function':
                            opts.maxHeight = opts.height.call( $dot[ 0 ] );
                            break;

                        default:
                            opts.maxHeight = getTrueInnerHeight( $dot );
                            break;
                    }

                    opts.maxHeight += opts.tolerance;

                    if ( typeof c != 'undefined' )
                    {
                        if ( typeof c == 'string' || ('nodeType' in c && c.nodeType === 1) )
                        {
                             c = $('<div />').append( c ).contents();
                        }
                        if ( c instanceof $ )
                        {
                            orgContent = c;
                        }
                    }

                    $inr = $dot.wrapInner( '<div class="dotdotdot" />' ).children();
                    $inr.contents()
                        .detach()
                        .end()
                        .append( orgContent.clone( true ) )
                        .find( 'br' )
                        .replaceWith( '  <br />  ' )
                        .end()
                        .css({
                            'height'    : 'auto',
                            'width'        : 'auto',
                            'border'    : 'none',
                            'padding'    : 0,
                            'margin'    : 0
                        });

                    var after = false,
                        trunc = false;

                    if ( conf.afterElement )
                    {
                        after = conf.afterElement.clone( true );
                        after.show();
                        conf.afterElement.detach();
                    }

                    if ( test( $inr, opts ) )
                    {
                        if ( opts.wrap == 'children' )
                        {
                            trunc = children( $inr, opts, after );
                        }
                        else
                        {
                            trunc = ellipsis( $inr, $dot, $inr, opts, after );
                        }
                    }
                    $inr.replaceWith( $inr.contents() );
                    $inr = null;

                    if ( $.isFunction( opts.callback ) )
                    {
                        opts.callback.call( $dot[ 0 ], trunc, orgContent );
                    }

                    conf.isTruncated = trunc;
                    return trunc;
                }

            ).bind(
                'isTruncated.dot',
                function( e, fn )
                {
                    e.preventDefault();
                    e.stopPropagation();

                    if ( typeof fn == 'function' )
                    {
                        fn.call( $dot[ 0 ], conf.isTruncated );
                    }
                    return conf.isTruncated;
                }

            ).bind(
                'originalContent.dot',
                function( e, fn )
                {
                    e.preventDefault();
                    e.stopPropagation();

                    if ( typeof fn == 'function' )
                    {
                        fn.call( $dot[ 0 ], orgContent );
                    }
                    return orgContent;
                }

            ).bind(
                'destroy.dot',
                function( e )
                {
                    e.preventDefault();
                    e.stopPropagation();

                    $dot.unwatch()
                        .unbind_events()
                        .contents()
                        .detach()
                        .end()
                        .append( orgContent )
                        .attr( 'style', $dot.data( 'dotdotdot-style' ) || '' )
                        .data( 'dotdotdot', false );
                }
            );
            return $dot;
        };    //    /bind_events

        $dot.unbind_events = function()
        {
            $dot.unbind('.dot');
            return $dot;
        };    //    /unbind_events

        $dot.watch = function()
        {
            $dot.unwatch();
            if ( opts.watch == 'window' )
            {
                var $window = $(window),
                    _wWidth = $window.width(),
                    _wHeight = $window.height();

                $window.bind(
                    'resize.dot' + conf.dotId,
                    function()
                    {
                        if ( _wWidth != $window.width() || _wHeight != $window.height() || !opts.windowResizeFix )
                        {
                            _wWidth = $window.width();
                            _wHeight = $window.height();

                            if ( watchInt )
                            {
                                clearInterval( watchInt );
                            }
                            watchInt = setTimeout(
                                function()
                                {
                                    $dot.trigger( 'update.dot' );
                                }, 100
                            );
                        }
                    }
                );
            }
            else
            {
                watchOrg = getSizes( $dot );
                watchInt = setInterval(
                    function()
                    {
                        if ( $dot.is( ':visible' ) )
                        {
                            var watchNew = getSizes( $dot );
                            if ( watchOrg.width  != watchNew.width ||
                                 watchOrg.height != watchNew.height )
                            {
                                $dot.trigger( 'update.dot' );
                                watchOrg = watchNew;
                            }
                        }
                    }, 500
                );
            }
            return $dot;
        };
        $dot.unwatch = function()
        {
            $(window).unbind( 'resize.dot' + conf.dotId );
            if ( watchInt )
            {
                clearInterval( watchInt );
            }
            return $dot;
        };

        var    opts         = $.extend( true, {}, $.fn.dotdotdot.defaults, o ),
            conf        = {},
            watchOrg    = {},
            watchInt    = null,
            $inr        = null;


        if ( !( opts.lastCharacter.remove instanceof Array ) )
        {
            opts.lastCharacter.remove = $.fn.dotdotdot.defaultArrays.lastCharacter.remove;
        }
        if ( !( opts.lastCharacter.noEllipsis instanceof Array ) )
        {
            opts.lastCharacter.noEllipsis = $.fn.dotdotdot.defaultArrays.lastCharacter.noEllipsis;
        }


        conf.afterElement    = getElement( opts.after, $dot );
        conf.isTruncated    = false;
        conf.dotId            = dotId++;


        $dot.data( 'dotdotdot', true )
            .bind_events()
            .trigger( 'update.dot' );

        if ( opts.watch )
        {
            $dot.watch();
        }

        return $dot;
    };


    //    public
    $.fn.dotdotdot.defaults = {
        'ellipsis'            : '... ',
        'wrap'                : 'word',
        'fallbackToLetter'    : true,
        'lastCharacter'        : {},
        'tolerance'            : 0,
        'callback'            : null,
        'after'                : null,
        'height'            : null,
        'watch'                : false,
        'windowResizeFix'    : true
    };
    $.fn.dotdotdot.defaultArrays = {
        'lastCharacter'        : {
            'remove'            : [ ' ', 'u3000', ',', ';', '.', '!', '?' ],
            'noEllipsis'        : []
        }
    };
    $.fn.dotdotdot.debug = function( msg ) {};


    //    private
    var dotId = 1;

    function children( $elem, o, after )
    {
        var $elements     = $elem.children(),
            isTruncated    = false;

        $elem.empty();

        for ( var a = 0, l = $elements.length; a < l; a++ )
        {
            var $e = $elements.eq( a );
            $elem.append( $e );
            if ( after )
            {
                $elem.append( after );
            }
            if ( test( $elem, o ) )
            {
                $e.remove();
                isTruncated = true;
                break;
            }
            else
            {
                if ( after )
                {
                    after.detach();
                }
            }
        }
        return isTruncated;
    }
    function ellipsis( $elem, $d, $i, o, after )
    {
        var isTruncated    = false;

        //    Don't put the ellipsis directly inside these elements
        var notx = 'a, table, thead, tbody, tfoot, tr, col, colgroup, object, embed, param, ol, ul, dl, blockquote, select, optgroup, option, textarea, script, style';

        //    Don't remove these elements even if they are after the ellipsis
        var noty = 'script, .dotdotdot-keep';

        $elem
            .contents()
            .detach()
            .each(
                function()
                {

                    var e    = this,
                        $e    = $(e);

                    if ( typeof e == 'undefined' )
                    {
                        return true;
                    }
                    else if ( $e.is( noty ) )
                    {
                        $elem.append( $e );
                    }
                    else if ( isTruncated )
                    {
                        return true;
                    }
                    else
                    {
                        $elem.append( $e );
                        if ( after && !$e.is( o.after ) && !$e.find( o.after ).length  )
                        {
                            $elem[ $elem.is( notx ) ? 'after' : 'append' ]( after );
                        }
                        if ( test( $i, o ) )
                        {
                            if ( e.nodeType == 3 ) // node is TEXT
                            {
                                isTruncated = ellipsisElement( $e, $d, $i, o, after );
                            }
                            else
                            {
                                isTruncated = ellipsis( $e, $d, $i, o, after );
                            }
                        }

                        if ( !isTruncated )
                        {
                            if ( after )
                            {
                                after.detach();
                            }
                        }
                    }
                }
            );
        $d.addClass("is-truncated");
        return isTruncated;
    }
    function ellipsisElement( $e, $d, $i, o, after )
    {
        var e = $e[ 0 ];

        if ( !e )
        {
            return false;
        }

        var txt            = getTextContent( e ),
            space        = ( txt.indexOf(' ') !== -1 ) ? ' ' : 'u3000',
            separator    = ( o.wrap == 'letter' ) ? '' : space,
            textArr        = txt.split( separator ),
            position     = -1,
            midPos        = -1,
            startPos    = 0,
            endPos        = textArr.length - 1;


        //    Only one word
        if ( o.fallbackToLetter && startPos == 0 && endPos == 0 )
        {
            separator    = '';
            textArr        = txt.split( separator );
            endPos        = textArr.length - 1;
        }

        while ( startPos <= endPos && !( startPos == 0 && endPos == 0 ) )
        {
            var m = Math.floor( ( startPos + endPos ) / 2 );
            if ( m == midPos )
            {
                break;
            }
            midPos = m;

            setTextContent( e, textArr.slice( 0, midPos + 1 ).join( separator ) + o.ellipsis );
            $i.children()
                .each(
                    function()
                    {
                        $(this).toggle().toggle();
                    }
                );

            if ( !test( $i, o ) )
            {
                position = midPos;
                startPos = midPos;
            }
            else
            {
                endPos = midPos;

                //    Fallback to letter
                if (o.fallbackToLetter && startPos == 0 && endPos == 0 )
                {
                    separator    = '';
                    textArr        = textArr[ 0 ].split( separator );
                    position    = -1;
                    midPos        = -1;
                    startPos    = 0;
                    endPos        = textArr.length - 1;
                }
            }
        }

        if ( position != -1 && !( textArr.length == 1 && textArr[ 0 ].length == 0 ) )
        {
            txt = addEllipsis( textArr.slice( 0, position + 1 ).join( separator ), o );
            setTextContent( e, txt );
        }
        else
        {
            var $w = $e.parent();
            $e.detach();

            var afterLength = ( after && after.closest($w).length ) ? after.length : 0;

            if ( $w.contents().length > afterLength )
            {
                e = findLastTextNode( $w.contents().eq( -1 - afterLength ), $d );
            }
            else
            {
                e = findLastTextNode( $w, $d, true );
                if ( !afterLength )
                {
                    $w.detach();
                }
            }
            if ( e )
            {
                txt = addEllipsis( getTextContent( e ), o );
                setTextContent( e, txt );
                if ( afterLength && after )
                {
                    $(e).parent().append( after );
                }
            }
        }

        return true;
    }
    function test( $i, o )
    {
        return $i.innerHeight() > o.maxHeight;
    }
    function addEllipsis( txt, o )
    {
        while( $.inArray( txt.slice( -1 ), o.lastCharacter.remove ) > -1 )
        {
            txt = txt.slice( 0, -1 );
        }
        if ( $.inArray( txt.slice( -1 ), o.lastCharacter.noEllipsis ) < 0 )
        {
            txt += o.ellipsis;
        }
        return txt;
    }
    function getSizes( $d )
    {
        return {
            'width'    : $d.innerWidth(),
            'height': $d.innerHeight()
        };
    }
    function setTextContent( e, content )
    {
        if ( e.innerText )
        {
            e.innerText = content;
        }
        else if ( e.nodeValue )
        {
            e.nodeValue = content;
        }
        else if (e.textContent)
        {
            e.textContent = content;
        }

    }
    function getTextContent( e )
    {
        if ( e.innerText )
        {
            return e.innerText;
        }
        else if ( e.nodeValue )
        {
            return e.nodeValue;
        }
        else if ( e.textContent )
        {
            return e.textContent;
        }
        else
        {
            return "";
        }
    }
    function getPrevNode( n )
    {
        do
        {
            n = n.previousSibling;
        }
        while ( n && n.nodeType !== 1 && n.nodeType !== 3 );

        return n;
    }
    function findLastTextNode( $el, $top, excludeCurrent )
    {
        var e = $el && $el[ 0 ], p;
        if ( e )
        {
            if ( !excludeCurrent )
            {
                if ( e.nodeType === 3 )
                {
                    return e;
                }
                if ( $.trim( $el.text() ) )
                {
                    return findLastTextNode( $el.contents().last(), $top );
                }
            }
            p = getPrevNode( e );
            while ( !p )
            {
                $el = $el.parent();
                if ( $el.is( $top ) || !$el.length )
                {
                    return false;
                }
                p = getPrevNode( $el[0] );
            }
            if ( p )
            {
                return findLastTextNode( $(p), $top );
            }
        }
        return false;
    }
    function getElement( e, $i )
    {
        if ( !e )
        {
            return false;
        }
        if ( typeof e === 'string' )
        {
            e = $(e, $i);
            return ( e.length )
                ? e
                : false;
        }
        return !e.jquery
            ? false
            : e;
    }
    function getTrueInnerHeight( $el )
    {
        var h = $el.innerHeight(),
            a = [ 'paddingTop', 'paddingBottom' ];

        for ( var z = 0, l = a.length; z < l; z++ )
        {
            var m = parseInt( $el.css( a[ z ] ), 10 );
            if ( isNaN( m ) )
            {
                m = 0;
            }
            h -= m;
        }
        return h;
    }


    //    override jQuery.html
    var _orgHtml = $.fn.html;
    $.fn.html = function( str )
    {
        if ( str != undef && !$.isFunction( str ) && this.data( 'dotdotdot' ) )
        {
            return this.trigger( 'update', [ str ] );
        }
        return _orgHtml.apply( this, arguments );
    };


    //    override jQuery.text
    var _orgText = $.fn.text;
    $.fn.text = function( str )
    {
        if ( str != undef && !$.isFunction( str ) && this.data( 'dotdotdot' ) )
        {
            str = $( '<div />' ).text( str ).html();
            return this.trigger( 'update', [ str ] );
        }
        return _orgText.apply( this, arguments );
    };


})( jQuery );

压缩版jquery.dotdotdot.min.js

/*
 *    jQuery dotdotdot 1.7.4
 *
 *    Copyright (c) Fred Heusschen
 *    www.frebsite.nl
 *
 *    Plugin website:
 *    dotdotdot.frebsite.nl
 *
 *    Licensed under the MIT license.
 *    http://en.wikipedia.org/wiki/MIT_License
 */
!function(t,e){function n(t,e,n){var r=t.children(),o=!1;t.empty();for(var i=0,d=r.length;d>i;i++){var l=r.eq(i);if(t.append(l),n&&t.append(n),a(t,e)){l.remove(),o=!0;break}n&&n.detach()}return o}function r(e,n,i,d,l){var s=!1,c="a, table, thead, tbody, tfoot, tr, col, colgroup, object, embed, param, ol, ul, dl, blockquote, select, optgroup, option, textarea, script, style",u="script, .dotdotdot-keep";return e.contents().detach().each(function(){var h=this,f=t(h);if("undefined"==typeof h)return!0;if(f.is(u))e.append(f);else{if(s)return!0;e.append(f),!l||f.is(d.after)||f.find(d.after).length||e[e.is(c)?"after":"append"](l),a(i,d)&&(s=3==h.nodeType?o(f,n,i,d,l):r(f,n,i,d,l)),s||l&&l.detach()}}),n.addClass("is-truncated"),s}function o(e,n,r,o,d){var c=e[0];if(!c)return!1;var h=s(c),f=-1!==h.indexOf(" ")?" ":"　",p="letter"==o.wrap?"":f,g=h.split(p),v=-1,w=-1,b=0,y=g.length-1;for(o.fallbackToLetter&&0==b&&0==y&&(p="",g=h.split(p),y=g.length-1);y>=b&&(0!=b||0!=y);){var m=Math.floor((b+y)/2);if(m==w)break;w=m,l(c,g.slice(0,w+1).join(p)+o.ellipsis),r.children().each(function(){t(this).toggle().toggle()}),a(r,o)?(y=w,o.fallbackToLetter&&0==b&&0==y&&(p="",g=g[0].split(p),v=-1,w=-1,b=0,y=g.length-1)):(v=w,b=w)}if(-1==v||1==g.length&&0==g[0].length){var x=e.parent();e.detach();var T=d&&d.closest(x).length?d.length:0;x.contents().length>T?c=u(x.contents().eq(-1-T),n):(c=u(x,n,!0),T||x.detach()),c&&(h=i(s(c),o),l(c,h),T&&d&&t(c).parent().append(d))}else h=i(g.slice(0,v+1).join(p),o),l(c,h);return!0}function a(t,e){return t.innerHeight()>e.maxHeight}function i(e,n){for(;t.inArray(e.slice(-1),n.lastCharacter.remove)>-1;)e=e.slice(0,-1);return t.inArray(e.slice(-1),n.lastCharacter.noEllipsis)<0&&(e+=n.ellipsis),e}function d(t){return{t.innerWidth(),height:t.innerHeight()}}function l(t,e){t.innerText?t.innerText=e:t.nodeValue?t.nodeValue=e:t.textContent&&(t.textContent=e)}function s(t){return t.innerText?t.innerText:t.nodeValue?t.nodeValue:t.textContent?t.textContent:""}function c(t){do t=t.previousSibling;while(t&&1!==t.nodeType&&3!==t.nodeType);return t}function u(e,n,r){var o,a=e&&e[0];if(a){if(!r){if(3===a.nodeType)return a;if(t.trim(e.text()))return u(e.contents().last(),n)}for(o=c(a);!o;){if(e=e.parent(),e.is(n)||!e.length)return!1;o=c(e[0])}if(o)return u(t(o),n)}return!1}function h(e,n){return e?"string"==typeof e?(e=t(e,n),e.length?e:!1):e.jquery?e:!1:!1}function f(t){for(var e=t.innerHeight(),n=["paddingTop","paddingBottom"],r=0,o=n.length;o>r;r++){var a=parseInt(t.css(n[r]),10);isNaN(a)&&(a=0),e-=a}return e}if(!t.fn.dotdotdot){t.fn.dotdotdot=function(e){if(0==this.length)return t.fn.dotdotdot.debug('No element found for "'+this.selector+'".'),this;if(this.length>1)return this.each(function(){t(this).dotdotdot(e)});var o=this,i=o.contents();o.data("dotdotdot")&&o.trigger("destroy.dot"),o.data("dotdotdot-style",o.attr("style")||""),o.css("word-wrap","break-word"),"nowrap"===o.css("white-space")&&o.css("white-space","normal"),o.bind_events=function(){return o.bind("update.dot",function(e,d){switch(o.removeClass("is-truncated"),e.preventDefault(),e.stopPropagation(),typeof l.height){case"number":l.maxHeight=l.height;break;case"function":l.maxHeight=l.height.call(o[0]);break;default:l.maxHeight=f(o)}l.maxHeight+=l.tolerance,"undefined"!=typeof d&&(("string"==typeof d||"nodeType"in d&&1===d.nodeType)&&(d=t("<div />").append(d).contents()),d instanceof t&&(i=d)),g=o.wrapInner('<div class="dotdotdot" />').children(),g.contents().detach().end().append(i.clone(!0)).find("br").replaceWith("  <br />  ").end().css({height:"auto","auto",border:"none",padding:0,margin:0});var c=!1,u=!1;return s.afterElement&&(c=s.afterElement.clone(!0),c.show(),s.afterElement.detach()),a(g,l)&&(u="children"==l.wrap?n(g,l,c):r(g,o,g,l,c)),g.replaceWith(g.contents()),g=null,t.isFunction(l.callback)&&l.callback.call(o[0],u,i),s.isTruncated=u,u}).bind("isTruncated.dot",function(t,e){return t.preventDefault(),t.stopPropagation(),"function"==typeof e&&e.call(o[0],s.isTruncated),s.isTruncated}).bind("originalContent.dot",function(t,e){return t.preventDefault(),t.stopPropagation(),"function"==typeof e&&e.call(o[0],i),i}).bind("destroy.dot",function(t){t.preventDefault(),t.stopPropagation(),o.unwatch().unbind_events().contents().detach().end().append(i).attr("style",o.data("dotdotdot-style")||"").data("dotdotdot",!1)}),o},o.unbind_events=function(){return o.unbind(".dot"),o},o.watch=function(){if(o.unwatch(),"window"==l.watch){var e=t(window),n=e.width(),r=e.height();e.bind("resize.dot"+s.dotId,function(){n==e.width()&&r==e.height()&&l.windowResizeFix||(n=e.width(),r=e.height(),u&&clearInterval(u),u=setTimeout(function(){o.trigger("update.dot")},100))})}else c=d(o),u=setInterval(function(){if(o.is(":visible")){var t=d(o);(c.width!=t.width||c.height!=t.height)&&(o.trigger("update.dot"),c=t)}},500);return o},o.unwatch=function(){return t(window).unbind("resize.dot"+s.dotId),u&&clearInterval(u),o};var l=t.extend(!0,{},t.fn.dotdotdot.defaults,e),s={},c={},u=null,g=null;return l.lastCharacter.remove instanceof Array||(l.lastCharacter.remove=t.fn.dotdotdot.defaultArrays.lastCharacter.remove),l.lastCharacter.noEllipsis instanceof Array||(l.lastCharacter.noEllipsis=t.fn.dotdotdot.defaultArrays.lastCharacter.noEllipsis),s.afterElement=h(l.after,o),s.isTruncated=!1,s.dotId=p++,o.data("dotdotdot",!0).bind_events().trigger("update.dot"),l.watch&&o.watch(),o},t.fn.dotdotdot.defaults={ellipsis:"... ",wrap:"word",fallbackToLetter:!0,lastCharacter:{},tolerance:0,callback:null,after:null,height:null,watch:!1,windowResizeFix:!0},t.fn.dotdotdot.defaultArrays={lastCharacter:{remove:[" ","　",",",";",".","!","?"],noEllipsis:[]}},t.fn.dotdotdot.debug=function(t){};var p=1,g=t.fn.html;t.fn.html=function(n){return n!=e&&!t.isFunction(n)&&this.data("dotdotdot")?this.trigger("update",[n]):g.apply(this,arguments)};var v=t.fn.text;t.fn.text=function(n){return n!=e&&!t.isFunction(n)&&this.data("dotdotdot")?(n=t("<div />").text(n).html(),this.trigger("update",[n])):v.apply(this,arguments)}}}(jQuery);

全局css

html, body {
                padding: 0;
                margin: 0;
                height: 100%;
            }
            body, div, p {
                font-family: Arial, Helvetica, Verdana;
                color: #333;
                -webkit-text-size-adjust: none;
            }
            body {
                background-color: #f3f3f3;
            }
            a, a:link, a:active, a:visited {
                color: black;
                text-decoration: underline;
            }
            a:hover {
                color: #9E1F63;
            }


            #wrapper {
                background-color: #fff;
                width: 600px;
                padding: 50px 50px 0 50px;
                margin: 0 auto;
                border: 1px solid #ccc;
                box-shadow: 0 0 5px #ccc;
            }
            div.example {
                padding: 0 0 150px 0;
            }
            div.example:after {
                content: '';
                display: block;
                clear: both;
            }
            div.example p {
                margin: 0 0 10px 0;
            }
            div.l {
                width: 275px;
                float: left;
            }
            div.r {
                width: 275px;
                float: right;
            }
            
            div.box {
                border: 1px solid #ccc;
                height: 160px;
                padding: 15px 20px 10px 20px;
/*                 overflow: hidden; */
            }
            div.resize {
                padding-bottom: 250px;
            }
            div.resize div.box {
                position: absolute;
                width: 40%;
                height: 100px;
            }
            div.resize div.box.before {
                right: 50%;
                margin-right: 10px;
            }
            div.resize div.box.after {
                left: 50%;
                margin-left: 10px;
            }
            div.box.opened
            {
                height: auto;
            }
            div.box .toggle .close,
            div.box.opened .toggle .open
            {
                display: none;
            }
            div.box .toggle .opened,
            div.box.opened .toggle .close
            {
                display: inline;
            }
            div.box.before {
                background-color: #ffeeee;
            }
            div.box.after {
                background-color: #eeffee;
            }
            p.before {
                color: #990000;
            }
            p.after {
                color: #006600;
            }
            div.box.pathname {
                height: auto;
            }
            .pathname {
                height: 25px;
            }

<div class="example">                
                <div class="l">
                    <p class="before">before:</p>
                    <div class="box before">Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged.</div>
                </div>
                <div class="r">
                    <p class="after">after:</p>
                     <div class="box after" id="dot1">Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged.</div>
                </div>
            </div>

$('#dot1').dotdotdot();

2.带段落标签的溢出

$('#dot2').dotdotdot();

<div class="example">
                <div class="l">
                    <p class="before">before:</p>
                    <div class="box before">
                        <p><em>Lorem Ipsum</em> is simply dummy text of the <strong>printing</strong> and <strong>typesetting industry</strong>.</p>
                        <p><em>Lorem Ipsum</em> has been the industry's standard dummy text ever since <strong>the 1500s</strong>, when an unknown printer took a <em>galley of type</em> and scrambled it to make a type specimen book.</p>
                        <p>It has survived not only <strong>five centuries</strong>, but also the leap into <strong>electronic typesetting</strong>.</p>
                    </div>
                </div>
                <div class="r">
                    <p class="after">after:</p>
                    <div class="box after" id="dot2">
                        <p><em>Lorem Ipsum</em> is simply dummy text of the <strong>printing</strong> and <strong>typesetting industry</strong>.</p>
                        <p><em>Lorem Ipsum</em> has been the industry's standard dummy text ever since <strong>the 1500s</strong>, when an unknown printer took a <em>galley of type</em> and scrambled it to make a type specimen book.</p>
                        <p>It has survived not only <strong>five centuries</strong>, but also the leap into <strong>electronic typesetting</strong>.</p>
                    </div>
                </div>
            </div>

3.带有reademore的字样的.

$('#dot3').dotdotdot({
    after: 'a.readmore'
});

<div class="example">
                <div class="l">
                    <p class="before">before:</p>
                    <div class="box before">Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged.
                        <a href="#" class="readmore">Read more &raquo;</a></div>
                </div>
                <div class="r">
                    <p class="after">after:</p>
                    <div class="box after" id="dot3">Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged.
                        <a href="#" class="readmore">Read more &raquo;</a></div>
                </div>
            </div>

4.当浏览器大小变化时,自动实现隐藏,或显示省略号

<div class="example resize">
                <div class="l">
                    <p class="before">before:</p>
                    <div class="box before">Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged.</div>
                </div>
                <div class="r">
                    <p class="after">after:</p>
                    <div class="box after" id="dot4">Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged.</div>
                </div>
            </div>

$('#dot4').dotdotdot({
    watch: 'window'
});

5.自动展开多余内容的按钮

<div class="example">
                <div class="l">
                    <p class="before">before:</p>
                    <div class="box before">Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged.</div>
                </div>
                <div class="r">
                    <p class="after">after:</p>
                    <div class="box after" id="dot5">Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged.</div>
                </div>
            </div>

var $dot5 = $('#dot5');
                $dot5.append( ' <a class="toggle" href="#"><span class="open">[ + ]</span><span class="close">[ - ]</span></a>' );


                function createDots()
                {
                    $dot5.dotdotdot({
                        after: 'a.toggle'
                    });
                }
                function destroyDots() {
                    $dot5.trigger( 'destroy' );
                }
                createDots();

                $dot5.on(
                    'click',
                    'a.toggle',
                    function() {
                        $dot5.toggleClass( 'opened' );

                        if ( $dot5.hasClass( 'opened' ) ) {
                            destroyDots();
                        } else {
                            createDots();
                        }
                        return false;
                    }
                );

6.隐藏长路径

<div class="example">
                <div class="l">
                    <p class="before">before:</p>
                    <div class="box before pathname">
                        <div class="pathname">www.website.com/file.html</div>
                        <div class="pathname">www.website.com/with/a/long/pathname/file.html</div>
                    </div>
                </div>
                <div class="r">
                    <p class="after">after:</p>
                    <div class="box after pathname" id="dot6">
                        <div class="pathname">www.website.com/file.html</div>
                        <div class="pathname">www.website.com/with/a/long/pathname/file.html</div>
                    </div>
                </div>
            </div>

$('#dot6 .pathname').each(function() {
    var path = $(this).html().split( '/' );
    if ( path.length > 1 ) {
        var name = path.pop();
        $(this).html( path.join( '/' ) + '<span class="filename">/' + name + '</span>' );
        $(this).dotdotdot({
            after: '.filename',
            wrap: 'letter'
        });                        
    }
});