upload上传多个文件？

task.addFile();没作用？

var task=plus.uploader.createUpload("fileupload.do",  
                {method:"POST"},  
                function(t,status){ //上传完成  
                    if(status==200){  
                        wt.close();  
                        mui.confirm("上传成功！！是否清除已上传图片","提示",["清除","保留"],function(e){  
                            if(e.index==0){  
                                cleanHistory();//清除历史记录  
                            }  
                        });  
                        files=[];  
                    }else if(t.responseText==4006){  
                        wt.close();  
                        mui.alert("证件号码不存在");  
                        files=[];  
                    }else{  
                        wt.close();  
                        mui.alert("上传失败");  
                        files=[];  
                    }  
                }  
            );  
            task.addData("userid",userid);  
            if(posi){  
                task.addData("longitude",posi.longitude);  
                task.addData("latitude",posi.latitude);  
            }  

            console.log(posi.longitude);  
            console.log(posi.latitude);  

            for(var i=0;i<files.length;i++){  
                var f=files[i];  
                var fileinfo = plus.storage.getItem(f.name);  
                var filepath=f.path.replace("camera","zip");  
                console.log(filepath)  
                var c= task.addFile(filepath,{key:fileinfo});  
                console.log(c);  
            }  
                console.log("1")  
                task.start();  
}