A learning apparatus in a digital environment is advantageous to interaction and communication among users who use a knowledge point structure for learning. The learning apparatus in the digital environment constructs a structurized knowledge library by editing knowledge points, tags of the knowledge points and a relationship among the knowledge points; then records a user's mastery degree for the knowledge points on the basis of the tags; and records knowledge learning information and social attribute information thereof for each user, so as to construct a general-class learning record, a single-class learning record and a general knowledge learning system of the user, which can also be used for the user to view the popularity of each tag in the knowledge library.
Please help me write a proper abstract based on the patent claims. CLAIM: 1. A learning apparatus in a digital environment, characterized in that the system comprises a cloud server platform and a terminal device, wherein the cloud server platform further comprises a knowledge point structurized storage apparatus and a user information storage apparatus; the knowledge point structurized storage apparatus comprises a knowledge point library module, a tag library module, a relationship library module and a structurized knowledge library module, wherein: the knowledge point library module stores various knowledge points; the tag library module stores tags of the various knowledge points, with the tags and the knowledge points being in one-to-one correspondence; the relationship library module stores a relationship among the various knowledge points; and the structurized knowledge library module constructs a knowledge point structure based on the relationship among the various knowledge points and stores all the knowledge points with the structure; and the user information storage apparatus stores user information about various users, wherein each piece of user information at least comprises a user attribute, tag classification information about the knowledge points corresponding to the user, relationship information about the knowledge points corresponding to the user, structurized knowledge corresponding to the user and social attribute information about the user, wherein the tag classification information about the knowledge points corresponding to the user is a classification of tags based on the user's mastery degree for the knowledge points, the relationship information about the knowledge points corresponding to the user is a relationship among the knowledge points learnt by the user, the structurized knowledge corresponding to the user refers to a knowledge point structure constructed based on the relationship among various knowledge points learnt by the user, and the social attribute information about the user refers to the user's attitude to sharing the learnt knowledge points. 2. The learning apparatus in the digital environment according to claim 1, characterized in that the relationship among the various knowledge points stored in the relationship library module comprises an ordinary logical relationship, a philosophical relationship and a mathematical relationship among the knowledge points. 3. The learning apparatus in the digital environment according to claim 2, characterized in that the knowledge point structurized storage apparatus further comprises a fractal library module, wherein the fractal library module expresses a relationship among stored tags based on the fractal theory. 4. The learning apparatus in the digital environment according to claim 1, characterized in that the classification for tags by a tag classification information module comprises viewed, authenticated and mastered. 5. The learning apparatus in the digital environment according to claim 1, characterized in that the social attribute information about the user comprises whether an identity of the user himself/herself is open or whether the user shares learnt knowledge points. 6. The learning apparatus in the digital environment according to claim 1, characterized in that the system performs a knowledge point access operation on the knowledge point library module, wherein an access operation mode comprises text, picture, audio, video, multi-media, and multi-language accesses. 7. The learning apparatus in the digital environment according to claim 1, characterized in that each piece of user information further comprises user note information for recording the user's note information about the tags, the relationship and the structurized knowledge. 8. The learning apparatus in the digital environment according to claim 1, characterized in that the cloud server platform further comprises: a general-class user learning recording apparatus for recording a learning process of all knowledge points by the user based on a time axis. 9. The learning apparatus in the digital environment according to claim 1, characterized in that the cloud server platform further comprises: a single-class user learning recording apparatus for recording a learning process of single-class knowledge points by the user based on a time axis. 10. The learning apparatus in the digital environment according to claim 9, characterized in that the single-class user learning recording apparatus further records the user's notes for the tags of and the relationship among the learnt knowledge points, and the structurized knowledge. 11. The learning apparatus in the digital environment according to claim 1, characterized in that the cloud server platform further comprises: a user knowledge structure recording apparatus for recording a knowledge structure of the knowledge points learnt by the user based on the learning record of the user for the knowledge points. 12. The learning apparatus in the digital environment according to claim 1, characterized in that the cloud server platform further comprises: a knowledge point popularity display apparatus for displaying popularity of a tag corresponding to a knowledge point based on the condition of each knowledge point being accessed by users.