属性约简代码
............\arraydelcr.m
............\columnzero.m
............\corewithattrds.m
............\elementin.m
............\equal1.m
............\equalmatrix.m
............\indwithattr.m
............\poswithattr.m
............\preprocess.m
............\reductwithattr.m
............\reductwithattrds.m
............\rulewithattr.m
............\sort1.m
............\subset11.m
............\subset1m.m
............\使用帮助：新手必看.htm