2. After entering WeChat on iPhone, there will be many options such as WeChat content, messages, address book, discovery, me, search icon and so on.

3. Select the icon in the upper right corner of the main page of WeChat in iPhone, and click Enter.

4. After entering, a small window will appear, with multiple options such as "Initiate a group chat", "Add a friend", "Sweep", "Receive and pay" and "Help feedback".

5. Select the "Scan" option in the small window to enter the "Scan" home page.

6. After entering the "Sweep" main page, a row of options such as "QR code" and "Translation" will appear at the bottom. Select the "QR code" option on the "Sweep" main page.

7. At the same time, we can notice that there is a line at the bottom of the window where the QR code is scanned, which reads "Put the QR code/barcode in the box, and it can be scanned automatically".

8. Finally, we put the barcode and QR code to be scanned into the box, and the words "scanned, being processed" appear, so that we can scan the barcode and QR code.