Add category operation
1. **Click Add** - Click the "Add Category" button
2. **Fill in the form** - Fill in the category information in the dialog box
3. **Select Parent** - Use the tree selector to select the parent category
4. **Submit Creation** - Click "Confirm" to complete the creation
Edit Category Operation
1. **Locate Category** - Find the target category in the table
2. **Click Edit** - Click the "Edit" button
3. **Modify Information** - Modify the category information in the pop-up window
4. **Save Changes** - Click "Confirm" to save the changes