1. There is a "Menu" button in the upper left corner of the game interface. Players can click this button to enter the game settings.

2. In the game settings, the player can see a "swap location" option. By clicking this option, players can use the function of exchanging positions in the game.

3. In the game, players can exchange two identical foods by touching them on the screen and then clicking the "Exchange Location" button.

4. It should be noted that the switch position function has a certain cooling time, and players need to use this function reasonably in the game to get higher scores.