Custom form-how does dedecms Upload attachments to the website background at the front end?

Ladies and gentlemen, I used dedecms to create a website. now we need to create a page (column) that allows any visitor to upload attachments to this website, I used a custom form Upload to create the attachment Upload function. However, during a local test, uploading the file to the background did not respond. please kindly advise me to see what is going on, in addition to this method, is there another way to implement this function? thank you! The younger brother attaches the design draft ,! Refer to image ](((img.ask.csdn.netupload201508081439020148_758157.png) custom form php

Ladies and gentlemen, I used dedecms to create a website. now we need to create a page (column) that allows any visitor to upload attachments to this website, I used a custom form Upload to create the attachment Upload function. However, during a local test, uploading the file to the background did not respond. please kindly advise me to see what is going on, in addition to this method, is there another way to implement this function? thank you! The younger brother attaches the design draft,