plupload文件上传插件实现多个按钮

参考 https://www.cnblogs.com/houdj/p/7002650.html

                <tr>
                    <td>&nbsp;</td>
                    <td>
                        <input style="height:30px;" type="text" id="pictureName" value="" readonly>
                        <a href="javascript:void(0);" class="btn" id="btn">上传文件</a>
                        <input type="hidden" value="" name="" id="picture">
                    </td>
                </tr>

                <tr>
                    <td>&nbsp;</td>
                    <td>
                        <input class="" style="height:30px;" type="text" id="pictureName1" value=""  readonly>
                        <a href="javascript:void(0);" class="btn easyui-linkbutton" id="btn1">上传文件1</a>
                        <input type="hidden" value="" name="data" id="picture1">
                    </td>
                </tr>
                
                
         var ids = new Array("btn","btn1");
        $.each(ids,function(i,n){
            var self = this.toString();
            //实例化一个plupload上传对象
            var uploader = new plupload.Uploader({
                browse_button : self, //触发文件选择对话框的按钮，为那个元素id
                url : '' ,//服务器端的上传页面地址
                max_file_size: '3mb',//限制为2MB
                filters: [{title: "Image files",extensions: self.search('1')==-1 ? 'gif,png,jpg,jpeg':'jpg,pdf'}]//图片限制
            });
            //在实例对象上调用init()方法进行初始化
            uploader.init();
            //绑定各种事件，并在事件监听函数中做你想做的事
            uploader.bind('FilesAdded',function(uploader,files){ //文件上传前
                //这里我只处理一张图片
                var flag = self.search('1');// -1 表示没找到
                if (flag == -1 && imageFile != '') {
                    uploader.removeFile(imageFile); //删除队列中的元素
                } else if (scanFile != '') {
                    uploader.removeFile(scanFile);
                }
                uploader.start();
            });
             uploader.bind('UploadProgress',function(uploader,files){ //上传中，显示进度条
            
            });
            uploader.bind('FileUploaded',function(up,file,info){////文件上传成功的时候触发
                console.log(up);
                // console.log(uploader.total);
                imageFile = file;
                var data = JSON.parse(info.response);
                if(data.error==0){
                    uploader.removeFile(files);
                    showMessage(data.msg);
                }else{
                    var flag = self.search('1');// -1 表示没找到
                    console.log(flag);
                    if(flag==-1){
                    imageFile = file;
                        $("#picture").val(data.pic);
                        $("#pictureName").val(data.name);
                    }else{
                        
                        scanFile = file;
                         $("#pictureName1").val(data.name);
                        $("#picture1").val(data.pic);
                    }
                }
            });
        });