基于THINKPHP+layui+Ajax无刷新实现图片上传预览

<fieldset class="layui-elem-field" style="width:500px;margin:50px 0 0 300px;">
  <legend>上传回调图片会在这里显示 - 淘素材</legend>
  <div class="layui-field-box">
<div style="width:300px;float:left;">
<img src="" style="max-width:320px;float:left;" id="showimg">
</div>
    <div style="float:left;margin:0 0 20px 30px;">
<button type="button" class="layui-btn" id="test1">
  <i class="layui-icon"></i>上传图片
</button>
</div>
  </div>
</fieldset>

　　

 layui.use(['upload','form'], function(){
   var upload = layui.upload,form = layui.form;
   var uploadInst = upload.render({
     elem: '#test1' //绑定元素
     ,url: 'demo.php' //上传接口
     ,done: function(res){
       $('#showimg').attr('src',res.url);
     }
     ,error: function(){
       layer.msg('上传失败');
     }
   });
 });

具体演示：http://www.jq8868.com/a/83.html