说明：  Logistic映射系统的每一个值都与它前面的那个值不存在确定的关系，但是后一个值的取值取决于前一个值，Logistic映射动力方程具有足够高的线性复杂度。
(Logistic mapping system each value and that value in front of it there is no definite relations, but after a value of value depends on the previous value, Logistic mapping dynamic equation has a sufficiently high linear complexity.)