Class unloading method and electronic device

An electronic device, comprising:

• one or more processors and one or more memories, wherein the one or more memories are coupled to the one or more processors, the one or more memories comprise computer program code, the computer program code comprises a computer instruction, and when the one or more processors execute the computer instruction, the electronic device performs:
• loading n classes after an application is started, wherein n is a positive integer;
• generating a reference mapping table, wherein the reference mapping table comprises a reference relationship between the n classes and m class objects corresponding to the n classes and a dependency relationship between the m class objects corresponding to the n classes, the dependency relationship is used to represent an interdependency mapping relationship between different class objects, and m is a positive integer greater than or equal to n;
• and
• unloading a first class of the n classes based on the reference mapping table in an operation process of the application, wherein when the reference mapping table does not comprise reference relationships and dependency relationships of all class objects corresponding to the first class, unloading the first class comprises:
• deleting, from the reference mapping table, reference relationships and dependency relationships of all class objects corresponding to the first class when the reference mapping table meets a preset condition, wherein after the deleting the reference mapping table does not comprise any reference relationships and dependency relationships of class objects corresponding to the first class;
• and
• unloading the first class;
• and
• wherein the preset condition comprises:
• priorities of all the class objects corresponding to the first class in the reference mapping table are less than or equal to a first preset threshold, and priorities of class objects on which all the class objects corresponding to the first class in the reference mapping table depend are less than or equal to a second preset threshold.