displaying, by a processor, a scenario editing interface, the scenario editing interface comprising a visual graphic editing region, a script editing region, and at least one scenario editing tool option, the at least one scenario editing tool option comprising one or more of a sound control tool and an action control tool for a virtual character;

detecting, by the processor, a trigger operation performed with respect to the scenario editing tool option;

generating, by the processor, a scenario element editing operation according to the trigger operation;

displaying, by the processor, in the visual graphic editing region, a graphic markup card corresponding to the scenario element editing operation; and

generating and displaying, by the processor, in the script editing region, a markup language script corresponding to the scenario element editing operation.