vertex_format_delete(formatID);
N/A(无返回值)
This function must be called whenever you are finished using any created vector formats. You provide the format ID value (as returned by the function vector_format_end()), and this function will free the memory associated with it. Note that if you try to use this format again after calling this function, you will get an error.
vertex_format_delete(myFormat);
The above code will remove the vertex format created in the variable "myFormat" from memory.