说明：  基于穷举法实现的LDPC码的校验H矩阵的自动生成程序，并且有一定的去小环的功能。如果最后的结果趋缓结果不理想，可以适当加大变量GENE的初始值，它表明程序穷举的次数，预置为500次。
(Method Based on the exhaustive LDPC check matrix H automatic generation procedures, and to a certain small part of the function. If the final results of the slowdown in the outcome is unsatisfactory, it may be appropriate variables LCRA increase on the initial value It shows that the number of procedures exhaustive, preset to 500.)