1）在（任务，错误） - > Void in 打印错误（如果存在），因为如果出现问题，您会收到错误。

1) In (task, error) -> Void in print error if it exists, because if something goes wrong you receive error there.

NSLog("%@", error.localizedDescription)

2）您确定名称：1是否写入？因为这是后端获取文件数据的字段名称（询问后端开发人员的此字段名称）

2) Are you sure that name: "1" is write? Because this is the name of field where the backend get the file data (ask about this field name your backend developer)

3）将文件类型 jpeg 附加到上传图片名称：

3) Append file type jpeg to uploading image name:

formData.appendPartWithFileData(imageData, name: "1", fileName: "userimage\(self.objManager.userID).jpeg", mimeType: "image/jpeg")