求阿里云oss 如何用plus.uploader批量上传图片

如下为单个图片上传方式，已经跑通了，但是批量上传折腾了很久，一直都没搞定，求官方帮忙看一下

                    var up_task = plus.uploader.createUpload(oss_host, {  
                        method: "POST"  
                    },  
                    function(t, status) { //上传完成  
                        if(status == 200) {  
                            mui.toast('图片上传成功~');  
                        } else {  
                            mui.toast('图片上传失败，错误码：' + status + '，请截图在个人中心反馈给客服~');  
                        }  
                    }  
                );  
                    up_task.addData("key", 'test/' + arr_imgs[i].key);  
                    up_task.addData("policy", oss_topic_policy);  
                    up_task.addData("OSSAccessKeyId", oss_accessid);  
                    up_task.addData("success_action_status", "200");  
                    up_task.addData("signature", oss_topic_signature);  
                    up_task.addFile(arr_imgs[i].path, {  
                        key: "file",  
                        name: "file",  
                        mime: "image/webp"  
                    });  
                    up_task.start();