Genetic Reversionary Algorithm of Simple L System

How to retrieve a smallest set of 0L gene from a long 0L string which can be reverted with the set of 0L gene is studied．Based on the essential restrictions of reversion，genetic iteration is used to help search the smallest 0L gene．A long 0L string can be discriminated whether it is an iterative string and the smallest or small enough 0L gene will be obtained．The reversionary algorithm can be used for identifying or compressing 0L string．