1. Open your mobile App Store (such as App Store or Google Play Store) and search for the mobile phone recharge software corresponding to the dining card in Ruihe canteen.
2. Select the appropriate software from the search results, and download and install it.
3. When you open the software, you will generally be asked to log in or register your account.
4. Select the recharge option in the software, and choose the meal card of Ruihe canteen as the recharge object.
5. Enter your meal card number and corresponding information (you may need to register and bind your meal card).
6. Enter the amount you want to recharge and select the payment method to complete the payment.
7. Confirm the payment and wait for the prompt to complete the recharge.
Please note that when using mobile phone charging software to recharge, you must ensure that the downloaded software is official or reliable, and pay attention to protecting the safety of personal information. If you have any questions about how to use the software, I suggest you consult the customer service or related technical support team of Ruihe canteen.