1. A storage medium embedded in a television, the storage medium storing code of a television software system, the television comprising a processor for executing the code of the television software system, the television software system comprising: a first application, having a first function library; a second application, having a second function library different from the first function library; and an application management module, for managing the first application and the second application according to the first function library and the second function library, respectively, wherein after the application management module activates a target application in the applications, the target application sends a callback function list to the application management module, wherein the call back function list comprises at least one applicable function and at least one function in the function library of the target application, and wherein the applicable function comprises at least one of a focus assigning function, a focus withdrawal function, a resource assigning function, a resource withdrawal function and a termination function.