success: function (datas) { //请求成功后处理函数。

                    var htmltext = '';

                    var data = datas.result;

                    console.log(data)

                    var ihtml = [];

                    for (var i in data) {

                        ihtml.push('<div class="col-md-3 col-sm-6 col-xs-6">'

                            + '<img src="' + data[i].img + '" width="240" height="180"/>'

                            + '</div>')

                    }

                    var len = ihtml.length/4;

                    len = parseInt(ihtml.length%4!=0?len+1:len);

                    console.log(len);

                    for(var i=0;i<len;i++){

                        var start = i*4;

                        var end = start+4;

                        end = end>ihtml.length?ihtml.length:end;

                        ihtml.slice(start,end);

                        console.log(ihtml.slice(start,end))

                        htmltext += '<li>' +

                            '' + (ihtml.slice(start,end)).join("") + '' +

                            '</li>'

                            console.log(1)

                    }

                    console.log(ihtml)

                    console.log(htmltext);

                    $(".coop-ul").html(htmltext);

                },

<ul class="coop-ul">

                    <li>

                        <div class="col-md-3 col-sm-6 col-xs-6">

                            <!-- <a href="javascript:return false;" target="_blank"> -->

                            <img src="img/01.png" width="190">

                            <!-- </a> -->

                        </div>

                        <div class="col-md-3 col-sm-6 col-xs-6">

                            <!-- <a href="javascript:return false;" target="_blank"> -->

                            <img src="img/02.png" width="190">

                            <!-- </a> -->

                        </div>

                        <div class="col-md-3 col-sm-6 col-xs-6">

                            <!-- <a href="javascript:return false;" target="_blank"> -->

                            <img src="img/03.png" width="190">

                            <!-- </a> -->

                        </div>

                        <div class="col-md-3 col-sm-6 col-xs-6">

                            <!-- <a href="javascript:return false;" target="_blank"> -->

                            <img src="img/04.png" width="190">

                            <!-- </a> -->

                        </div>

                    </li>

                    <li class="li2">

                        <div class="col-md-3 col-sm-6 col-xs-6">

                            <!-- <a href="javascript:return false;" target="_blank"> -->

                            <img src="img/05.png" width="190">

                            <!-- </a> -->

                        </div>

                        <div class="col-md-3 col-sm-6 col-xs-6">

                            <!-- <a href="javascript:return false;" target="_blank"> -->

                            <img src="img/06.png" width="190">

                            <!-- </a> -->

                        </div>

                        <div class="col-md-3 col-sm-6 col-xs-6">

                            <!-- <a href="javascript:return false;" target="_blank"> -->

                            <img src="img/07.png" width="190">

                            <!-- </a> -->

                        </div>

                        <div class="col-md-3 col-sm-6 col-xs-6">

                            <!-- <a href="javascript:return false;" target="_blank"> -->

                            <img src="img/08.png" width="190">

                            <!-- </a> -->

                        </div>

                    </li>

                    <li class="li3">

                        <div class="col-md-3 col-sm-6 col-xs-6">

                            <!-- <a href="javascript:return false;" target="_blank"> -->

                            <img src="img/09.jpg" width="190">

                            <!-- </a> -->

                        </div>

                        <div class="col-md-3 col-sm-6 col-xs-6">

                            <!-- <a href="javascript:return false;" target="_blank"> -->

                            <img src="img/10.jpg" width="190" height="120">

                            <!-- </a> -->

                        </div>

                        <div class="col-md-3 col-sm-6 col-xs-6">

                            <!-- <a href="javascript:return false;" target="_blank"> -->

                            <img src="img/07.png" width="190">

                            <!-- </a> -->

                        </div>

                        <div class="col-md-3 col-sm-6 col-xs-6">

                            <!-- <a href="javascript:return false;" target="_blank"> -->

                            <img src="img/08.png" width="190">

                            <!-- </a> -->

                        </div>

                    </li>

                </ul>