User-defined method based on database unified management

The invention discloses a user-defined method based on database unified management, which comprises the following steps: a user can obtain each variable in software through an Object tree to carry outprogramming, and meanwhile, a retrieval function is provided, so that the user can quickly find the variable; a user can replace an original function in a program by inputting a simple JavaScript program on an interface, so that the applicability of software is improved, and meanwhile, the experience and the technology of the user are also reserved. Loading and unloading of the user-defined program are completed through one key of the interface, and convenience and rapidness are achieved. The method can be combined with a database at the same time, programs reserved on a user-defined interface can be automatically stored and classified in the database, and no other files need to be stored as independent files. Compared with the prior art, the method has the advantages that (1) a convenient and friendly interface