Abstract: A device and a method for upgrading a skill of a game character are provided. The method includes following steps. Whether a target game program currently being executed is one of multiple preset game programs is determined. When the target game program is one of the preset game programs and the game character in the target game program meets an upgrade condition, a corresponding skill upgrade path is executed to upgrade at least one skill of the game character.

Abstract: A multi-window display method applicable to an electronic device is provided. First, a multi-window icon is set in a setting window. The multi-window icon corresponds to at least a first application and a second application. Then, a multi-window interface is generated in response to a first operation corresponding to the multi-window icon. The multi-window interface includes a first window, a second window, and a separation region, the first application is executed in the first window, the second application is executed in the second window, and the separation region is located between the first window and the second window. Then, a floating window interface is generated in response to a second operation corresponding to a frame region of the second window. The floating window interface includes a main window and a floating window. An electronic device for performing the multi-window display method is further provided.