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              <div class="test13">
  <div class="test13-placeholder"></div>
  <div class="test13-more">...更多</div>
  <span class="test13-text"><!--注释-->文字文<span>
    </span>
    <span style="display: inline-block; width: 30px;height: 30px; background: pink;margin: 10px;">
    </span>

    字文字文字文字文字文字文字文<span>字<span>文<span>字</span>文</span>字</span>文字english文字文字文字文字文字文字文字文字文字文字文字文字文字文
    <span style="display: inline-block; width: 30px;height: 30px; background: pink;margin: 10px;">
      ok
    </span>
    字文字文字文字文字文字文字文字文字文字文字文字文字文字文字文字字文字文字文字文字文字文字</span>
</div>
            
          
!
            
              .test13 {
    position: relative;
    overflow: hidden;
    text-align: justify;
    background-color: rgba(0,0,0,.2);
    line-height: 1.25em;
}
.test13-text {
    display: inline;
    word-break: break-all;
    word-wrap: break-word; 
    word-break: normal; 
}
.test13-more {
    display: none;
    clear: right;
    float: right;
    line-height: 1;
    background-color: rgba(0,0,0,.2);
}
.test13.is-ellipsis .test13-more {
    display: block;
}
.test13-placeholder {
    content: "";
    display: none;
    width: 0;
    height: 57px;
    float: right;
}
.test13.is-ellipsis .test13-placeholder {
    display: block;
}
            
          
!
            
              !function(doc, win, classList, matches, addSelectorListener, getRowRects) {
    var selector = ".test13",
        maxRow = 2,
        elements = [];

    function ellipsis(element, selector) {
        [].forEach.call(element.children, function(child) {
            if(child.matches(selector+"-text")) {
                var rowRects = getRowRects(child),
                    elementRect = element.getBoundingClientRect(),
                    lineHeight = 0;

                if(rowRects.length > maxRow){
                    element.classList.add("is-ellipsis");
                    element.querySelector(selector+"-placeholder").style.height = (rowRects[maxRow - 1].top - elementRect.top) + "px";
                    lineHeight = rowRects[maxRow].top - rowRects[maxRow - 1].bottom;
                    element.style.maxHeight = (rowRects[maxRow - 1].bottom + lineHeight/2 - elementRect.top) + "px";
                }
                else {
                    element.classList.remove("is-ellipsis");
                }
                return false;
            }
        })
    }

    addSelectorListener(selector, function(element, selector) {//监听选择器
        elements.push({element: element, selector: selector});
        ellipsis(element, selector);
    });
    win.addEventListener("resize" ,function() {//窗口尺寸变化
        elements.forEach(function(item, index) {//已有元素
            if(item.element.parentNode) {
                ellipsis(item.element, item.selector);
            }
            else {
                elements.splice(index, 1);//如果没有父元素则删除引用
            }
        })
    });
}(
    document,
    window,
    (function() {//classList polyfill,不支持classList.forEach
        /*! @source https://purl.eligrey.com/github/classList.js/blob/master/classList.js */
        if("document" in self){if(!("classList" in document.createElement("_"))){(function(j){"use strict";if(!("Element" in j)){return}var a="classList",f="prototype",m=j.Element[f],b=Object,k=String[f].trim||function(){return this.replace(/^\s+|\s+$/g,"")},c=Array[f].indexOf||function(q){var p=0,o=this.length;for(;p<o;p++){if(p in this&&this[p]===q){return p}}return -1},n=function(o,p){this.name=o;this.code=DOMException[o];this.message=p},g=function(p,o){if(o===""){throw new n("SYNTAX_ERR","An invalid or illegal string was specified")}if(/\s/.test(o)){throw new n("INVALID_CHARACTER_ERR","String contains an invalid character")}return c.call(p,o)},d=function(s){var r=k.call(s.getAttribute("class")||""),q=r?r.split(/\s+/):[],p=0,o=q.length;for(;p<o;p++){this.push(q[p])}this._updateClassName=function(){s.setAttribute("class",this.toString())}},e=d[f]=[],i=function(){return new d(this)};n[f]=Error[f];e.item=function(o){return this[o]||null};e.contains=function(o){o+="";return g(this,o)!==-1};e.add=function(){var s=arguments,r=0,p=s.length,q,o=false;do{q=s[r]+"";if(g(this,q)===-1){this.push(q);o=true}}while(++r<p);if(o){this._updateClassName()}};e.remove=function(){var t=arguments,s=0,p=t.length,r,o=false,q;do{r=t[s]+"";q=g(this,r);while(q!==-1){this.splice(q,1);o=true;q=g(this,r)}}while(++s<p);if(o){this._updateClassName()}};e.toggle=function(p,q){p+="";var o=this.contains(p),r=o?q!==true&&"remove":q!==false&&"add";if(r){this[r](p)}if(q===true||q===false){return q}else{return !o}};e.toString=function(){return this.join(" ")};if(b.defineProperty){var l={get:i,enumerable:true,configurable:true};try{b.defineProperty(m,a,l)}catch(h){if(h.number===-2146823252){l.enumerable=false;b.defineProperty(m,a,l)}}}else{if(b[f].__defineGetter__){m.__defineGetter__(a,i)}}}(self))}else{(function(){var b=document.createElement("_");b.classList.add("c1","c2");if(!b.classList.contains("c2")){var c=function(e){var d=DOMTokenList.prototype[e];DOMTokenList.prototype[e]=function(h){var g,f=arguments.length;for(g=0;g<f;g++){h=arguments[g];d.call(this,h)}}};c("add");c("remove")}b.classList.toggle("c3",false);if(b.classList.contains("c3")){var a=DOMTokenList.prototype.toggle;DOMTokenList.prototype.toggle=function(d,e){if(1 in arguments&&!this.contains(d)===!e){return e}else{return a.call(this,d)}}}b=null}())}};
    })(),
    (function() {// matches polyfill
        Element && function(ElementPrototype) {
            ElementPrototype.matches = ElementPrototype.matches ||
            ElementPrototype.matchesSelector ||
            ElementPrototype.webkitMatchesSelector ||
            function(selector) {
                var node = this, nodes = (node.parentNode || node.document).querySelectorAll(selector), i = -1;
                while (nodes[++i] && nodes[i] != node);
                return !!nodes[i];
            }
        }(Element.prototype);
        return Element.prototype.matches
    })(),
    function (selector, handler) {//addSelectorListener
        var uid = "js-live-",
            $style = document.createElement("style");


        function animationStart(e) {
            if(e.animationName == uid) {
                var element = e.target;
                element.classList.add(uid);//增加触发标志,去除animation占用
                handler(element, selector);
            }
        }

        //选择器有变动则触发animationstart,然后调用回调
        document.getElementsByTagName("head")[0].appendChild($style);
        for(var i=0,el=$style; el = el.previousElementSibling; i++) ;//利用style的位置做uid
        uid += i;
        $style.appendChild(document.createTextNode("@-webkit-keyframes "+uid+" {0%{}}@keyframes "+uid+" {0%{}}"+selector+":not(."+uid+"){-webkit-animation:"+uid+"!important;animation:"+uid+"!important}"));
        document.addEventListener("webkitAnimationStart", animationStart, false);
        document.addEventListener("animationstart", animationStart, false);
        //如果立即执行animationstart会重复动画
        

    },
    function(element) {//geRowRects
        var rects = [],
            clientRects = element.getClientRects(),
            len = clientRects.length,
            clientRect, top, rectsLen, rect, i;

        for(i=0; i<len; i++) {
            has = false;
            rectsLen = rects.length;
            clientRect = clientRects[i];
            top = clientRect.top;
            while(rectsLen--) {
                rect = rects[rectsLen];
                if (rect.top == top) {
                    has = true;
                    break;
                }
            }
            if(has) {
                rect.right = rect.right > clientRect.right ? rect.right : clientRect.right;
                rect.width = rect.right - rect.left;
            }
            else {
                rects.push({
                    top: clientRect.top,
                    right: clientRect.right,
                    bottom: clientRect.bottom,
                    left: clientRect.left,
                    width: clientRect.width,
                    height: clientRect.height
                });
            }
        }
        return rects;
    }
)

            
          
!
999px
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