<div id="content" class="defaults">
                <div class="optionCity" id="itemContainer">
                    <div class="yb_contDiv">你好</div>
                    <div class="yb_contDiv">你好</div>
                    <div>你好</div>
                    <div>你好</div>
                    <div>你好</div>
                    <div>你好</div>
                    <div>你好</div>
                    <div>holle</div>
                    
                </div>
                <div class="holder"></div>
</div>

$.ajax({
                type:"get",
                url:"js/groupExhibition.json",
                async:true,
                success:function(data){
                    mymonth(data)
                    var arr = eval(data);                    
                    for(var d=0;d<arr.length;d++){
                        var div = $("<div class='yb_contDiv'></div>");
                        var div1 = $("<div class='yb_contDivImg fl'></div>");
                        div1.html("<img src="+arr[d].img+" width='100%'; height='100%'>");
                        var div2 = $("<div class='yb_contDivword fl'></div>");
                            var h1 = $("<h3 class='yb_contH1'>"+arr[d].name+"</h3>");
                            var h2 = $("<h5 class='yb_contH2'>展会时间："+arr[d].time+"</h5>");
                            var h3 = $("<h5 class='yb_contH3'>展会地点："+arr[d].city+"</h5>");
                            div2.append(h1);
                            div2.append(h2);
                            div2.append(h3);                                                        
                        var div3 = $("<div style='clear: both;'></div>");                
                        div.append(div1);
                        div.append(div2);
                        div.append(div3);
                        $(".optionCity").append(div);
                        console.log($(".optionCity").html())
                    }
                }
            })

$("div.holder").jPages({
                containerID: "itemContainer",
                previous: "←",
                next: "→",
                perPage: 5,    
            });