Plug-in program calling method based on memory space optimization

The invention relates to a plug-in program calling method based on memory space optimization, which comprises the following steps of: acquiring calling instruction information in a main program; evaluating a storage space required by the operation of the subprogram corresponding to the calling instruction information, and correcting and correcting the storage space required by the operation of the subprogram; determining a main memory space required by the main program in the running process, and determining a residual space in a main memory according to the main memory space; setting the storage priority of the subprograms according to the size relationship between the residual space and the required storage space, adjusting the storage priority of each subprogram according to the calling times N of the subprograms, and correcting the adjusted storage priority of the subprograms according to the influence value P of the functions of the subprograms on the system stability. According to the plug-in program ca